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BMJ Sexual & Reproductive Health

BMJ

Preprints posted in the last 7 days, ranked by how well they match BMJ Sexual & Reproductive Health's content profile, based on 10 papers previously published here. The average preprint has a 0.01% match score for this journal, so anything above that is already an above-average fit.

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Assessing the association between contraceptive agency and preference-aligned fertility management among Ugandan women: A 12-month prospective cohort study

Birabwa, C.; Wasswa, R.; Amongin, D.; Rakesh, G.; Beth, P.; Sneha, C.; Gomez, R.; Atuyambe, L.; Liu, J.; Waiswa, P.; Holt, K.

2026-08-31 sexual and reproductive health 10.64898/2026.08.27.26361582 medRxiv
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Background There has been a proliferation of new person-centered and human rights-based contraception measures in recent years, though their application in research remains limited. Improved measures offer an opportunity to examine how contraceptive decision-making agency relates to individuals ability to act in line with their contraceptive preferences. We sought to assess the association between contraceptive agency and subsequent Preference-aligned Fertility Management (PFM) over 12 months in a cohort of women in rural Uganda. Methods We analyzed data from a prospective cohort study conducted in five largely rural Ugandan districts from 2022 to 2024. Data were collected at baseline, 6 and 12 months from a convenience sample of women who were new users of contraception or not using contraception. We used mixed-effects logistic regression models to examine the association between baseline Agency in Contraceptive Decisions Scale overall and subscale scores and future PFM Index scores at 6 and 12 months, assessing whether associations varied over time using interaction terms for follow-up time point. We used interactions between agency scores and follow-up visit to assess whether associations differed between the 6- and 12-month visits. We assessed effect modification by age group and baseline contraceptive method category using three-way interaction terms and predicted probabilities. Results The analytic sample comprised 2,227 women. The percentage of women practicing PFM increased from 85.7% at baseline to 93.3% at 12 months. A one-unit increase in Agency in Contraceptive Decisions Scale score was associated with higher odds of subsequent PFM (aOR: 1.68, 95% CI: 1.10-2.54). Subscales 3 (knowledge aligned with preferences) and 4 (control over use or non-use) of the Agency in Contraceptive Decisions Scale were significantly associated with future PFM (aOR: 1.31, 95% CI: 1.04-1.66 and aOR: 1.27, 95% CI: 1.06-1.51, respectively). The association between overall contraceptive agency and PFM did not differ between the 6- and 12-month visits. Three-way interaction tests suggested that the associations between the overall Agency in Contraceptive Decisions Scale score and the PFM outcomes varied jointly by age group and baseline contraceptive method category: overall PFM Index (p<0.001), PFM1 (p=0.011), and PFM2 (p<0.001). Conclusion Our findings suggest that higher levels of contraceptive agency may help women act in line with their contraceptive preferences. Increasing womens knowledge and control over contraceptive use may be particularly essential for preferred contraceptive use. The findings also suggest that the association between contraceptive agency and PFM may vary by womens age group and the method of choice, though further exploration is necessary to examine this influence.

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Investigation of mediating effects of sexual behaviours on the effect of a novel digital intervention on sexually transmitted reinfections: secondary analysis of a randomised controlled trial

Landray, I.; Carpenter, J.; Free, C.

2026-09-03 sexual and reproductive health 10.64898/2026.08.29.26361435 medRxiv
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Background Preventing sexually transmitted re-infections brings health benefits and can be significantly less costly than treating their sequelae. Safetxt is a potential novel digital intervention developed to promote safer sexual behaviours. However, a recent randomised controlled trial of safetxt found no effect on reinfection at 1 year (OR 1.13, 95%CI: 0.98-1.31). We investigated if safetxt's effect was mediated through sexually risky behaviours. Methods We used data from 6248 young people with STIs from 92 UK sexual health clinics. The direct and indirect effects of safetxt on reinfection were estimated using the counterfactual approach. Condom use at last sexual encounter, number of sexual partners and STI testing were assessed as mediators. These were analysed singly and together, using regression models and a formal weighting approach. The assumptions of each approach were considered and tested. Analyses were repeated in the subgroup showing the most promising effect of safetxt: men who have sex with men or with men and women (MSM/MSMW). Results No evidence was found for the total, indirect or direct effects differing from the null. Despite not being significant, for MSM/MSMW, some of safetxt's effect on reducing reinfection was identified as being offset through its effect on number of sexual partners. Conclusions There was no evidence that safetxt's effect on reinfection was mediated through changes in sexually risky behaviours. Adaptations to specifically target these behaviours are unlikely to improve safetxt's overall effect. However, improving safetxt's effect on the number of sexual partners a participant has may improve its effect for MSM/MSMW.

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Factors associated with the use of Long Acting Reversible Contraceptives among adolescents at first level hospitals in Lusaka, Zambia.

Ikabongo, I.; Macha, S.; Vwalika, B.; Kaonga, P.; Masumo, M. m.; Halwiindi, H.; Kunka, E.; Hazemba, A. N.

2026-08-31 sexual and reproductive health 10.64898/2026.08.26.26361478 medRxiv
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Background: Unintended adolescent pregnancies remain a public health challenge in Zambia, where LARC use is low despite their effectiveness. Barriers such as stigma, misconceptions, and limited access persist. Previous studies conducted in Lusaka district did not explore the challenges faced by adolescents in trying to access and use LARCs. Understanding these challenges is crucial for developing targeted interventions to promote safe and effective contraception practices. This study examined factors influencing adolescent knowledge, willingness, and uptake of LARCs in public health facilities in Lusaka. Methods: A cross-sectional study was conducted between November 2024 and March 2025 among adolescent girls aged 15-19 years in five first-level hospitals in Lusaka, Zambia, using structured questionnaires to obtain quantitative data1. LARC use was measured as a binary outcome, with multiple regression identifying associated factors. Results: There were 400 participants in total, of whom 48% (181/376) had ever used a LARC. In the adjusted model, age was significantly associated with LARC use (AOR = 1.27, 95% CI: 1.11-1.77; p < 0.001). Adolescents who were willing to delay pregnancy had markedly higher odds of using LARCs (AOR = 7.46, 95% CI: 1.42-39.06; p = 0.017). Knowledge of LARCs remained a strong independent predictor, more than doubling the likelihood of uptake (AOR = 2.69, 95% CI: 1.12-6.46; p = 0.027). Having children was also significantly associated with higher LARC use (AOR = 2.62, 95% CI: 1.11-6.23; p = 0.029), while participants with unknown HIV status had lower odds of LARC use (AOR = 0.31, 95% CI: 0.10-0.97; p = 0.044). In addition, adolescents residing in Chipata had substantially higher odds of LARC uptake compared to those in Kanyama (AOR = 317.93, 95% CI: 35.01-2887.2; p < 0.001). Conclusions: The findings indicate that age, knowledge of LARCs, reproductive experience (having children), and willingness to delay pregnancy were significantly associated with higher odds of LARC uptake, and almost half of the participants had already used a LARC method. Although higher education showed an upward trend, it was not statistically significant in the adjusted model. Limited awareness and variability in service delivery across clinics highlight the need for strengthened counseling and reliable access to LARCs. As this study focused only on adolescents already attending Family Planning Clinics, further research is needed to assess LARC availability, accessibility, and quality of counseling across different settings in Zambia.

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Evaluation of the Efficacy and Safety of Combination Therapy of Vamha and Myrha in the Management of PMOS: An Open-Label, Randomized, Multicentre, Comparative, Prospective Clinical Study

Patil, A.; Barathe, R.; Tate, D. M.; Kate, K.; Pande, S.; Gawande, N.; More, A.; Mahadik, S.; Berde, K.; Singhvi, R.

2026-09-02 sexual and reproductive health 10.64898/2026.08.20.26360875 medRxiv
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Introduction: Polyendocrine metabolic ovarian syndrome (PMOS), formerly known as polycystic ovary syndrome (PCOS), is a common endocrine disorder affecting women of reproductive age. Besides reproductive and metabolic disturbances, PMOS negatively impacts psychological well-being and quality of life. Despite available treatment options, there remains a need for safe and effective therapies that improve both clinical symptoms and fertility outcomes. Aim: To compare the efficacy of VAMHA and MYRHA tablet combination therapy with standard non-hormonal therapy in restoring regular menstruation. Secondary objectives included assessment of ovulation, menstrual symptoms, polycystic ovarian morphology, hormonal and metabolic parameters, anthropometric measures, and skin manifestations. Study Design: Open-label, randomized, multicentre, prospective comparative clinical study. Methods: Seventy-one women with PMOS were randomized to Group A (n=37) or Group B (n=34). Group A received VAMHA and MYRHA tablets (2 tablets each), while Group B received Metformin 500 mg plus Myoinositol 600 mg (1 tablet), twice daily for 180 days. Data were recorded in Case Report Forms. Statistical Analysis: Continuous variables were summarized using mean and standard deviation, while categorical variables were expressed as frequencies and percentages. Appropriate statistical tests, including Chi-square, were used. A p-value [&le;]0.05 was considered significant. Results: Significantly more participants in Group A achieved regular menstrual cycles than Group B (31 vs. 22; p<0.05). Ovulation occurred in 16 participants in Group A compared with 6 in Group B (p<0.05). Both groups showed significant improvement in menstrual irregularity and related symptoms. Significant reductions in Anti-Mullerian Hormone (AMH), fasting insulin, and body mass index (BMI) were observed in both groups (p<0.05). Resolution of polycystic ovarian morphology occurred in 13 participants (38.23%) in Group A and 10 (33.33%) in Group B. Both treatments were well tolerated with no major safety concerns. Conclusions: VAMHA and MYRHA combination therapy was superior to standard non-hormonal therapy in improving menstrual regularity and ovulation. It also produced favourable metabolic, hormonal, and ultrasonographic outcomes, suggesting its potential as a safe and effective option for comprehensive PMOS management and fertility enhancement.

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Socioeconomic position, adverse childhood experiences, and menstrual symptoms in two generations of a prospective UK cohort.

Sawyer, G.; Farooq, B.; Birnie, K.; Fraser, A.; Lawlor, D. A.; Sharp, G. C.; Howe, L. D.

2026-08-31 epidemiology 10.64898/2026.08.27.26361513 medRxiv
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Background: Inequalities exist for many health outcomes, but there is limited evidence regarding menstrual symptoms despite their importance for health and wellbeing. We aimed to investigate inequalities in menstrual symptoms according to socioeconomic position and childhood adversity. Methods: In two generations (G0 mothers and G1 offspring) from the Avon Longitudinal Study of Parents and Children (ALSPAC), a UK prospective cohort study, we examined associations of multiple indicators of socioeconomic position (SEP) and adverse childhood experiences (ACEs) with menstrual symptoms (pain, abnormal uterine bleeding, and premenstrual syndrome (PMS) measured 3-8-years post-birth in G0 and 17-21-years-old in G1), using multivariable logistic regression. Samples ranged from 4,828 to 9,335 G0 participants and 1,288 to 2,757 G1 participants depending on the exposure-outcome association. Missing data were addressed using multiple imputation and inverse probability weighting. Results: Financial difficulties were associated with greater odds of menstrual pain (G1 OR 1.41; 95% CI 1.07, 1.86: G0 OR 1.55; 95% CI 1.36, 1.76) and irregular cycles (G1 OR 1.60; 95% CI 1.12, 2.29: G0 OR 1.48; 95% CI 1.27, 1.72) in both generations, as well as with short/long cycle lengths in G0 only. Lower education and manual social class were also associated with these three menstrual symptoms in at least one generation. Conversely, higher SEP was associated with PMS in both generations. Higher cumulative ACEs were consistently associated with menstrual pain (4+ compared to none: G1 OR 2.15; 95% CI 1.48, 3.11: G0 OR 1.52; 95% CI 1.29, 1.80) and irregular cycles (G1 OR 1.92; 95% CI 1.20, 3.09: G0 OR 1.54; 95% CI 1.26, 1.87) but not cycle length. Lower parental education, financial difficulties, and cumulative ACEs were associated with heavy bleeding in G1 offspring only, whereas financial difficulties, own manual social class, and cumulative ACEs were associated with prolonged bleeding in G0 mothers only. Higher cumulative ACEs were also associated with PMS in G1 offspring only. Conclusions: We found evidence of inequalities according to socioeconomic disadvantage and childhood adversity for multiple menstrual symptoms, although some associations were only observed in one generation. Findings suggest that menstrual symptoms are disproportionately experienced by socially and socioeconomically disadvantaged women.

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Plasma and follicular fluid concentrations of carotenoids, tocopherols and retinol in a French population of women undergoing in vitro fertilization: a monocentric non-interventional study

Ndiaye, A.; Thiebaut, A. C. M.; Borel, P.; Sabran, C.; Elis, S.; Guerif, F.; Maillard, V.

2026-09-01 sexual and reproductive health 10.64898/2026.08.28.26360803 medRxiv
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The distribution of fat-soluble compounds (including antioxidants) in follicular fluid (FF) remains sparsely documented in relation to in vitro fertilization (IVF) outcomes and existing studies have reported diverging associations. This study aimed to describe plasma and FF concentrations of fat-soluble micronutrients in women undergoing IVF and to analyze their adjusted associations with ovarian function, embryo development and pregnancy outcomes. In 2021-2022, plasma and FF samples were collected from 82 women (first IVF cycle) at oocyte puncture, along with lifestyle data covering the three preceding months. Eleven compounds (two tocopherols, three xanthophylls, five carotenes and retinol) were quantified. All compounds were detected in both compartments (lowest in FF) except phytoene, undetectable in FF. Plasma and FF -tocopherol concentrations were positively associated with plasma estradiol levels before oocyte puncture (both p<0.01) while FF -carotene and lycopene were inversely associated with plasma progesterone concentrations (p=0.01 and 0.02, respectively). Plasma phytofluene and phytoene were positively associated with mature oocyte rate (p=0.03 and p=0.01, respectively), while FF retinol was negatively associated (p=0.03). Carotenes, tocopherols and retinol were inversely associated with later IVF outcomes: fertilization rate (p<0.001 for plasma g-tocopherol, 0.02 for FF retinol), top-quality embryo (p=0.02 for plasma phytofluene), biochemical pregnancy at day 7 post-embryo transfer (p=0.05 for plasma -tocopherol, 0.02 for plasma -carotene), clinical pregnancy (p=0.03 for plasma -tocopherol, 0.01 for plasma phytoene) and live birth (p=0.04 for plasma -tocopherol, 0.02 for plasma phytoene). Plasma and FF g-tocopherol were positively associated with embryo fragmentation (both p<0.05). Finally, among xanthophylls, only plasma {beta}-cryptoxanthin was positively associated with plasma progesterone concentrations (p=0.02). Our findings of heterogeneous associations between tocopherols, carotenes, retinol and IVF outcomes across the stages of IVF suggest a beneficial effect limited to early outcomes and support a complex and context-dependent role of these compounds in female reproduction. This manuscript has been submitted to PlosOne on August 19, 2026.

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Maternal cell-free RNA versus combined screening for first-trimester prediction of early-onset preeclampsia: a nested case-control study

Satorres-Perez, E.; Castillo-Marco, N.; Igual, M.; Cordero, T.; Munoz-Blat, I.; Monfort-Ortiz, R.; Marcos-Puig, B.; Simon, C.; Garrido-Gomez, T.; Perales-Marin, A.

2026-09-02 obstetrics and gynecology 10.64898/2026.08.28.26361628 medRxiv
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Background. In Europe, first-trimester combined screening with the Fetal Medicine Foundation (FMF) algorithm identifies women at increased risk of preeclampsia who may benefit from personalized aspirin prophylaxis. However, a substantial proportion of early-onset preeclampsia (EOPE) remains undetected at clinically acceptable specificity. Objective. To evaluate the first-trimester performance of MaiRa for early-onset preeclampsia (EOPE) risk stratification by benchmarking it against FMF screening in the same women, characterizing discordant patient-level classification profiles and exploring potential implementation strategies. Study Design. This secondary case-control analysis was nested within the prospective, multicentre PREMOM cohort [NCT04990141], which enrolled women with singleton pregnancies across 14 tertiary hospitals in Spain. First-trimester MaiRa and FMF risk estimates were evaluated in the same 126 pregnant women, comprising 99 uncomplicated controls and 27 EOPE cases, defined by disease onset before 34 weeks. Discrimination was compared using a stratified paired bootstrap analysis of the areas under the receiver-operating-characteristic curves. Performance was assessed at prespecified clinical thresholds, and detection rates were evaluated at fixed false-positive rates. Universal and contingent MaiRa implementation strategies were also evaluated. Results. MaiRa showed greater first-trimester discrimination for EOPE than FMF combined screening (AUC, 0.974 vs 0.900; P=.040) and consistently achieved higher detection rates across fixed false-positive rates. At false-positive rates of 5% and 10%, MaiRa detected 85.2% and 92.6% of EOPE cases, compared with 44.4% and 70.4% for FMF, respectively. Patient-level analysis demonstrated that MaiRa identified 12 of 27 EOPE cases (44.4%) classified as low risk by FMF; these pregnancies generally exhibited less abnormal conventional first-trimester profiles, including fewer maternal risk factors, lower mean arterial pressure and lower uterine artery pulsatility index, yet 8 of 12 (66.7%) subsequently developed severe EOPE. Exploratory implementation analyses showed that universal MaiRa screening achieved the highest EOPE detection, whereas a contingent strategy using FMF for triage and reflex MaiRa testing reduced molecular testing to 35.7% of pregnancies while maintaining 77.8% sensitivity and 97.0% specificity. Conclusion. MaiRa provided greater first-trimester discrimination for EOPE than conventional combined screening and detected additional pregnancies that later developed severe disease despite less abnormal conventional screening profiles. The findings suggest that maternal plasma cfRNA profiling captures biological alterations not fully reflected by combined first-trimester screening and support further prospective evaluation in an independent, unselected obstetric population. Key words: early-onset preeclampsia; first-trimester screening; cell-free RNA; liquid biopsy; Fetal Medicine Foundation algorithm; combined screening; risk stratification; aspirin prophylaxis.

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Does intimate partner violence associate with postnatal care utilization? Evidence from Tanzanias 2022 Demographic and Health Survey

Juma, N. A.; Bofu, R. M.; Kessy, J.; Burke, J.

2026-09-03 sexual and reproductive health 10.64898/2026.09.01.26361973 medRxiv
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Postnatal care (PNC) is essential for reducing preventable maternal and neonatal deaths, but its utilization remain low across sub-Saharan Africa. Intimate Partner Violence (IPV) may be an under-recognized barrier to PNC utilization, particularly in Tanzania, where direct evidence shows that IPV is linked to limited utilization of PNC. Therefore, this study assessed the association between IPV and PNC utilization within 42 days postpartum among women in Tanzania. This study conducted a secondary analysis of the 2022 Tanzania Demographic and Health Survey (TDHS), a nationally representative cross-sectional survey. The analysis included 2,674 women aged 15-49 years who had a live birth in the five years preceding the survey and were selected for the domestic violence module. IPV (any, physical, sexual, and emotional) was the primary exposure, and PNC utilization within 42 days postpartum was the outcome. Modified Poisson regression was used to estimate crude and adjusted prevalence ratios (cPR/aPR) with 95% confidence intervals (CI) because the prevalence of the outcome was common. The prevalence of PNC utilization within 42 days postpartum was 42.0%, and the overall prevalence of IPV was 33.6% (physical 26.1%, emotional 21.8% and sexual 7.3%). Women who experienced any IPV had 16% lower PNC utilization than those who did not (aPR=0.84; 95% CI: 0.74-0.96). Physical IPV (16%, aPR=0.84; 95% CI: 0.73-0.96) and sexual IPV (25%, aPR=0.75; 95% CI: 0.57-0.98) were significantly associated with lower PNC utilization, while emotional IPV was not. Maternal education, partners age, travel time to the nearest health facility, and media exposure were also other covariates associated with PNC utilization. Intimate partner violence is associated with low utilization of PNC within 42 days postpartum in Tanzania. Integrating IPV screening and survivor support into postnatal care services, alongside addressing structural barriers to access, may improve postpartum care coverage and maternal-neonatal outcomes.

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Hormonal Therapies For Endometriosis: A Systematic Review And Meta-Analysis Of Randomised Head-To-Head Trials

Bandini, V.; Whitaker, L. H.; Vincent, K.; Salmeri, N.; Mawson, R.; Vercellini, P.; Horne, A. W.

2026-08-31 obstetrics and gynecology 10.64898/2026.08.26.26361442 medRxiv
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Background: Endometriosis is a chronic pain condition in which hormonal therapies form the cornerstone of long-term management. Treatment tolerability is critical for adherence and therapeutic success, but most comparative studies and reviews have focused on their ability to reduce menstrual pain, while their impact on non-menstrual pelvic pain (NMPP), bleeding patterns, adverse events (AEs), treatment discontinuation and quality of life (QoL) remain poorly characterised. This systematic review and meta-analysis evaluate these outcomes across currently available hormonal therapies, providing practical evidence for clinical decision-making. Methods: PubMed/MEDLINE, Scopus, and Embase were searched up to November 2025 for randomised controlled trials comparing at least two active first- or second-line hormonal treatments for endometriosis. Studies without confirmed endometriosis, treatment duration less than three months and comparing therapies to placebo only were excluded. Data were extracted by two reviewers from reports. Pain outcomes were pooled as mean differences (MD, 95% CI), with bleeding patterns, AEs, and discontinuations as proportions. Analyses were performed in R. PROSPERO: CRD420251137785. Findings: Of 1892 records screened, 48 trials (5583 women) met our inclusion criteria. Overall pelvic pain (0-10 scale) was significantly reduced across all treatment categories (p<0.001): combined oral contraceptives (COCs) (MD 3.17), oral and long-acting progestogens (MD 3.83; MD 4.29), and GnRH-analogues (MD 3.81). Sensitivity analyses restricted to studies reporting NMPP yielded comparable results. GnRH-agonists showed the most favourable bleeding profile, followed by continuous COCs. However, all regimens reported class-specific AEs, including mood changes, nausea, headache, weight gain, and decreased libido (pooled proportions >10%). Overall discontinuation due to AEs was 7.7%, and vaginal bleeding was the leading cause. Heterogeneity across meta-analyses was high. Risk of bias (RoB2) was moderate to high. Interpretation: Given similar reductions in overall pelvic pain across hormonal therapies, treatment decisions should prioritise differences in bleeding profiles, therapy-specific AEs, and QoL. Funding: None.

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Utilization, Determinants and Experiences of Youth-Friendly Sexual and Reproductive Health Services Among Youth in Gurage Zone, Southern Ethiopia: A Concurrent Mixed-Methods Study

Nida, G. G.; Khunou, S.; Mphuthi, D.

2026-08-31 sexual and reproductive health 10.64898/2026.08.26.26361385 medRxiv
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Background: Sexual and reproductive health (SRH) is essential for youth development, particularly in Sub-Saharan Africa where youth represent a significant proportion of the population. Despite global efforts to promote Sexual and Reproductive Health rights, many disadvantaged youths face barriers to accessing comprehensive information and services. Youth-friendly sexual and reproductive health (YFSRH) services are central to improving youth health outcomes. Despite national standards in Ethiopia, implementation challenges persist. Healthcare workers (HCWs) are key actors in promoting and delivering YFSRH services Method: A concurrent mixed-methods design was employed among youth (18-24 years) and health care workers in Guraghe Zone, Southern Ethiopia. Quantitative data were collected using self-administered questionnaires, while qualitative data were gathered through key informant interviews. Quantitative data were analyzed using SPSS version 29, and qualitative data were analyzed thematically. Result: Although youths showed strong interest in Sexual and Reproductive Health information, help-seeking was often delayed due to discomfort, secrecy, social pressure, and limited foresight. Utilization of youth-friendly Sexual and Reproductive Health services was constrained by distance, inconvenient service hours, limited privacy and confidentiality, perceived judgmental provider attitudes, and financial barriers, reducing trust and repeat use. Conclusion: Improving youth Sexual and Reproductive Health requires integrated actions across education, families, and health services. Strengthening multi-channel Sexual and Reproductive Health education with life skills and psychosocial support, alongside decentralized, affordable, confidential, and non-judgmental youth-friendly services, is essential.

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Machine Learning-Based Prediction of Maternal Morbidity across Heterogeneous Populations in the United States using Sequential Modeling of the All of Us Dataset

Zhuang, H.; Zakama, A.; Heller, K.; Faulkner, S.; Gollub, B.; Young-Lin, N.; Chen, I. Y.; Asiedu, M.

2026-08-31 obstetrics and gynecology 10.64898/2026.08.25.26360552 medRxiv
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In this work, we demonstrate the unprecedented value of NIH's "All of Us Research Program" (AoURP) dataset in studying maternal morbidity and building predictive machine learning (ML) models across heterogeneous populations in the United States. We developed robust and data-driven preprocessing pipelines to curate a longitudinal, multi-site, multimodal, and demographically diverse pregnancy dataset (20,253 subjects; 27,525 pregnancy episodes) from AoURP data, using electronic health records (EHR) (Conditions, Labs, Measurements) and survey responses (Social Determinant of Health (SDoH)), focusing on 7 crucial maternal health adverse outcomes. After characterizing data quality, missingness, and heterogeneity, we performed statistical correlation analysis to identify risk factors. We subsequently developed XGBoost and sequential LSTM models to predict the adverse outcomes, reaching state-of-the-art performance for multiple outcomes. We conducted model interpretability post-hoc analysis to understand success points and fairness analysis to evaluate implications for socio-economic disparities. Four practicing physicians reviewed the set of statistically significant and ML model identified features to assess their clinical validity and novelty. Most features identified through either statistical correlations or ML feature importance analysis aligned with known clinical risk factors. Several features were identified that the ML models used but that are not currently used in clinical practice and may merit further clinical investigation. Fairness analysis revealed certain associations with SDoH and age highlight areas that warrant continued monitoring. Overall, we demonstrate that meaningful populational level patterns can be extracted, and high-performing machine learning models can be trained on this longitudinal, diverse, multi-site dataset. Important risk features, particularly novel ones identified, if validated, could inform new strategies for maternal care or enable development and validation of outcome-specific, clinically deployable ML models.

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Vaginal Steaming Practices Among Women At Mulago Sti Clinic, Uganda: Prevalence, Lactobacilli Proportion Differences, And Associated Factors.

Kakai, D.; Twinamasiko, N.; Kigozi, E.; Namutale, R.; Mutesi, B. A.; Bagaya, J.; Akinyi, L.; Kajumbula, H.; Nakubulwa, S.

2026-09-01 obstetrics and gynecology 10.64898/2026.08.28.26361407 medRxiv
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Abstract Background: Vaginal steaming has gained popularity among women for reasons known best to them. However, the effects of vaginal steaming on vaginal lactobacilli levels remain poorly understood and understudied. This study investigated the prevalence, assessed differences in the presence of bacterial vaginosis (BV) among women who practiced vaginal steaming and those who do not and determined the factors associated with vaginal steaming among women attending Mulago Sexually Transmitted Infections (STI) clinic in Uganda. Methods: This study utilized a cross-sectional design to enroll 181 women aged 18 to 49 years who were systematically sampled at Mulago STI clinic. Interviews were conducted to obtain the demographic characteristics of the participants. Vaginal swabbing and Gram staining were done to attain lactobacilli counts by microscopy which were categorized using the Nugent score. Data were analyzed using Stata. The potential confounding effects of other variables on the relation between vaginal steaming and the presence of bacterial vaginosis as well as factors associated with vaginal steaming were assessed using modified Poisson regression. Results: Prevalence of vaginal steaming was 40.3%, (95% confidence interval (CI) 33.0% - 48.0%). There were 41.1% women who practiced vaginal steaming occasionally, 53.4% who used hot water having herbs and 78.1% who practiced vaginal steaming for medical reasons. There was no difference in the presence of bacterial vaginosis when women who practiced vaginal steaming were compared to those who did not (p-value = 0.286). Factors that were significantly associated with vaginal steaming included having experienced vaginal issues (aPR = 0.07, 95% CI 0.01 - 0.12, p value = < 0.001) and contraceptive use (aPR= 0.52, 95% CI 0.37 - 0.72, p value = 0.001). Conclusions: About 2 in every 5 women at Mulago STI clinic reported to have indulged in vaginal steaming. There was no difference in the presence of bacterial vaginosis when women who practiced vaginal steaming were compared to those who did not. Having experienced vaginal issues and contraceptive use were significantly associated with vaginal steaming among women at Mulago STI clinic, Uganda. The Ministry of Health of Uganda should establish targeted screening and treatment for bacterial vaginosis alongside other sexually transmitted infections.

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Effects of collaborative clinical visit agenda-setting interventions: A systematic review and meta-analysis

Sierpe, A.; Yen, R. W.; Milliman, A.; Cady, E.; Ahn, B.; Dade, A. E.; Devito, A. M.; Eckert, B. A.; Gopalan, V. V.; Krasinski, S. C.; MacMartin, M. A.; Musacchio, S. G.; Zhang, J.; Saunders, C. H.

2026-09-03 medical education 10.64898/2026.08.30.26361729 medRxiv
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Background Agenda-setting is a fundamental patient-centered communication practice in which a clinician works with a patient to elicit, propose, and organize topics for discussion during a clinical encounter. Various agenda-setting interventions have been developed, including patient-facing tools and clinician training, but their effects have not been systematically evaluated. We aimed to determine the effects of these interventions on encounter, patient, care partner, and clinician outcomes. Methods We searched grey literature and seven databases, including PubMed, from inception through July 2025 for randomized and non-randomized comparative studies of interventions designed to promote or improve clinical visit agenda-setting. Two reviewers independently screened articles and extracted data, with a third reviewer resolving conflicts. We assessed risk of bias using RoB 2 for randomized studies and ROBINS-I for non-randomized studies. We conducted random effects meta-analyses when outcomes were sufficiently comparable, assessed heterogeneity using I2, and rated certainty of evidence using GRADE. Post hoc exploratory subgroup analyses examined study design, adjustment status, and intervention structure. Results Twenty-nine articles describing 22 unique studies met the inclusion criteria, including 13 randomized and nine non-randomized studies. Agenda-setting interventions increased the occurrence of agenda-setting (risk ratio 5.43, 95% confidence interval (CI) 2.06 to 14.28, I2=34.6%) and favored the intervention for concerns addressed when measured as a continuous outcome (standardized mean difference (SMD) 0.37, 95% CI 0.16 to 0.57, I2=65.3%) and overall clinician satisfaction (SMD 0.50, 95% CI 0.23 to 0.78, I2=0.0%). There were no clear differences in the number of concerns raised (mean difference (MD) 0.21, 95% CI -0.19 to 0.61, I2=59.6%), visit duration (MD 0.64 minutes, 95% CI -0.83 to 2.12, I2=51.4%), or overall patient satisfaction (SMD 0.05, 95% CI -0.05 to 0.15, I2=47.0%). Potentially important heterogeneity was present for four of these six outcomes. Post hoc exploratory subgroup analyses did not provide clear evidence that effects varied by study design, adjustment status, or intervention structure. Risk of bias was often high, serious, or critical, and certainty of evidence was low or very low for all pooled outcomes. Conclusions To our knowledge, this is the first comprehensive synthesis of clinical visit agenda-setting interventions. Such interventions may increase the occurrence of agenda-setting and the extent to which patient concerns are addressed without increasing visit length. However, the certainty of evidence was low or very low, and the available evidence does not establish a superior intervention structure.

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Risk-Adapted Atrial Fibrillation Monitoring after Embolic Stroke of Undetermined Source: A Population-Based Study

Elbischger, J.; Krainer, A.; Ruprechter, T.; Haidegger, M.; Berger, N.; Hatab, I.; Fandler-Höfler, S.; Heine, M.; Jagiello, J.; Koller, H.; Lilek, S.; Veeranki, S. P. K.; Enzinger, C.; Manninger, M.; Bisping, E.; Scherr, D.; Gattringer, T.; Kneihsl, M.

2026-08-31 neurology 10.64898/2026.08.27.26361578 medRxiv
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Background: Atrial fibrillation detected after stroke (AFDAS) is frequently diagnosed after embolic stroke of undetermined source (ESUS) and has important implications for secondary stroke prevention. Although prediction scores have been proposed to identify patients at increased risk of AFDAS, prospective evidence supporting their implementation to guide rhythm monitoring in routine clinical practice is limited. Methods: In this prospective, population-based implementation cohort study, adults with ESUS were enrolled between January 2022 and December 2024 across all stroke centers in Styria, Austria. The Graz AF Risk Score was prospectively implemented as part of a risk-adapted diagnostic pathway for cardiac rhythm monitoring. Patients with a score [&ge;]4 were recommended for implantable loop recorder monitoring, whereas monitoring in those with scores <4 remained at the treating physician's discretion. The primary outcome was AFDAS detection; recurrent ischemic stroke and recurrent stroke etiology were secondary outcomes. Results: Among 784 patients (median age 73 years [IQR 64-80], 45.7% women), AFDAS was detected in 166 patients (21.2%) during a median follow-up of 26.3 months (IQR 20-34). AFDAS detection was substantially higher in patients with a Graz AF Risk Score [&ge;]4 than <4 (38.1% vs. 3.9%; p<0.001). After adjustment for age, sex and ILR monitoring, a score [&ge;]4 independently predicted AFDAS (HR 6.3, 95% CI 3.5-11.2; p<0.001) and recurrent ischemic stroke (HR 2.2, 95% CI 1.1-4.1; p=0.023). Only one recurrent stroke in patients with a score <4 was attributable to atrial fibrillation (AF) (1/18, 5.6%). Conclusions: Prospective implementation of the Graz AF Risk Score identified patients with ESUS at markedly different risks of AFDAS. A Graz AF Risk Score [&ge;]4 was also independently associated with recurrent ischemic stroke. These findings support a risk-adapted approach to cardiac rhythm monitoring after ESUS.

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Investigating adiposity in childhood and adulthood on later life sleep health: a lifecourse Mendelian randomization study

pathak, s.; Richardson, T.; Sanderson, E.; Arora, N.; Strand, L.; Asvold, B. O.; Bhatta, L.; Brumpton, B.

2026-08-31 genetic and genomic medicine 10.64898/2026.08.27.26361310 medRxiv
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Background: Higher Body Mass Index (BMI) is an established risk factor of sleep disturbance. It is not known if the effect is homogeneous across the lifecourse or if there is a particular time point in life that might be best to target. Methods: Two-sample Mendelian randomization (MR) was used to investigated the effect of childhood adiposity (adjusting on adulthood adiposity and obstructive sleep apnea (OSA)) on insomnia, morning chronotype, sleep duration, daytime sleepiness and daytime napping. Similarly, total, and direct effect of adulthood adiposity on these outcomes was explored. We used summary statistics from a genome-wide association study (GWAS) of UK Biobank for childhood and adulthood adiposity (n=453,169) and large-scale consortia of OSA (Million Veteran Program) (n=410,268), insomnia, and chronotype (23andMe) (n=1,978,022 and n=248,1000, respectively). Results: Two-sample univariable MR analysis provided no evidence of an effect of genetically predicted childhood adiposity on later life insomnia (Odds ratio (OR)= 0.94, 95% Confidence interval (CI)= 0.87, 1.03). Whereas, multivariable MR (adjusted for adulthood adiposity) analysis provide strong evidence of direct protective effect of genetically predicted childhood adiposity on later life insomnia (OR= 0.70, CI= 0.64, 0.77). Further, both in univariable and multivariable MR, a strong positive effect of increased childhood body size on morning chronotype was observed (OR= 1.16, CI= 1.01, 1.33 and OR= 1.36, CI= 1.15, 1.62, respectively) after accounting for adulthood body size. In both analysis the estimate did not change considerably after aditionally adjusting for OSA. However, childhood and adulthood adiposity found to be associated with OSA and OSA with insomnia. In both univariable and multivariable analysis, increased body size in adulthood increased the risk of having insomnia and a morning chronotype. Conclusions: The findings suggest that higher body size in childhood is not a risk factor for later life insomnia, whereas higher body size in adulthood was. Further, if healthy body size is maintained in adulthood, high childhood adiposity may decrease the risk of insomnia and increase the risk of being a morning person in later life. Keywords: childhood, adulthood, obesity, insomnia, morning chronotype, medelian randomization

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Exclusive Breastfeeding Among Working Mothers In Ghana: Evidence From The 2022 Ghana Demographic And Health Survey.

Siddiq, A. I.; Saafu, I.; Borkor, E. T.; Vondee, E.; Sampana, F. T.; Okine, B.

2026-08-31 medical education 10.64898/2026.08.26.26361421 medRxiv
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Background: Exclusive breastfeeding may protect infants against common infections and support healthy growth and development. Working mothers may face constraints on exclusive breastfeeding arising from work schedules, separation from their infants, and inadequate breastfeeding support. National evidence on the individual, healthcare-related, and contextual factors associated with exclusive breastfeeding among working Ghanaian mothers appears to remain limited. Design: Cross-sectional secondary analysis. Setting: Nationally representative survey covering urban and rural communities across all 16 administrative regions of Ghana. Participants: The analysis included 620 currently working mothers whose youngest living infants were aged 0-5 completed months and lived with them. The complete-case multivariable analysis included 619 mother-infant pairs. Primary outcome measure: Current exclusive breastfeeding, defined using the standard 24-hour infant-feeding indicator. Infants were classified as exclusively breastfed when they received breast milk without water, formula, animal milk, other liquids, or solid or semi-solid foods during the preceding day or night. Oral rehydration solution, vitamins, minerals and prescribed medicines were permitted. Aim: To estimate the prevalence of exclusive breastfeeding and examine its individual, healthcare-related and contextual correlates among working mothers of infants aged 0-5 months in Ghana. Methods: Birth Recode data from the 2022 Ghana Demographic and Health Survey were analysed. Unweighted frequencies and survey-weighted percentages described the study population. Design-adjusted Wald tests assessed bivariate associations. Survey-weighted binary logistic regression estimated adjusted odds ratios (AORs) and 95% confidence intervals (CIs), accounting for sampling weights, primary sampling units, and strata. Results: The survey-weighted prevalence of exclusive breastfeeding was 54.3% (95% CI: 49.2-59.3). Ethnicity, mode of delivery, region, and community poverty appeared to be statistically significant in the bivariate analyses. In the adjusted model, region was jointly associated with exclusive breastfeeding (p = 0.004). Mothers in the Northern (AOR = 4.93; 95% CI: 1.5-16.17) and Savannah (AOR = 4.22; 95% CI: 1.08-16.41) regions had higher odds than mothers in the Western Region. Mothers in low-education communities had lower odds than those in high-education communities (AOR = 0.54; 95% CI: 0.30-0.98). Although Guan mothers had higher odds than Akan mothers, the overall association with ethnicity was non-significant, and the estimate appeared imprecise. Maternal age, individual education, religion, parity, wealth, infant sex, antenatal care, postnatal care, and residence were not independently associated with exclusive breastfeeding. Conclusion: The prevalence estimate suggests that slightly more than half of working mothers exclusively breastfed their infants. Regional and community differences appeared more pronounced than those associated with most measured individual characteristics. Regionally responsive breastfeeding support and practical community education may contribute to improved coverage. Workplace recommendations require further evidence because employment conditions were not measured directly. Keywords: Exclusive breastfeeding; working mothers; infant feeding; maternal employment; regional inequalities; community education; Ghana; 2022 Ghana Demographic and Health Survey; survey-weighted analysis.

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Paradoxical relief after seizures: a diagnostic signal distinguishing functional/dissociative from epileptic seizures

Masharani, A.; Koreki, A.; Marcelo, M.; Shalfrooshan, K.; Diamos, M.-A.; Santucci, C.; Pillai, K.; Bindman, D.; O'Sullivan, S.; Rugg-Gunn, F.; Sidhu, M.; Yogarajah, M.

2026-08-31 neurology 10.64898/2026.08.27.26360607 medRxiv
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Objective: To determine whether paradoxical relief, feeling unusually better after a seizure compared to before it, is more common after functional/dissociative seizures (FDS) than epileptic seizures (ES), quantify its diagnostic accuracy, and explore its relationship with preictal symptoms. Methods: Consecutive patients admitted to a tertiary epilepsy unit for prolonged inpatient EEG monitoring underwent a structured clinical interview on admission, before final multidisciplinary diagnostic classification. Preictal dissociative and autonomic/somatic symptom burden was assessed using items adapted from established questionnaires. Diagnostic classification incorporated clinical history, seizure semiology, video electroencephalography findings, and collateral information. Patients with dual or indeterminate diagnoses were excluded. Associations with paradoxical relief were examined using logistic regression, followed by an exploratory mediation analysis. Results: Of 176 patients assessed, 66 with FDS and 65 with ES were included. Paradoxical relief was reported by 46/66 patients with FDS (69.7%) and 10/65 with ES (15.4%; unadjusted odds ratio [OR] 12.65, 95% confidence interval [CI] 5.57 to 31.09). As a diagnostic signal for FDS, paradoxical relief had 69.7% sensitivity (95% CI 57.1 to 80.4), 84.6% specificity (95% CI 73.5 to 92.4), a positive likelihood ratio of 4.53 (2.51 to 8.19), and a negative likelihood ratio of 0.36 (0.24 to 0.52). FDS diagnosis remained independently associated with paradoxical relief after adjustment (OR 10.59, 95% CI 3.42 to 38.06). In a parallel mediation analysis, dissociative symptom burden showed a significant indirect effect, accounting for 19.5% of the association between diagnostic group and relief, whereas the indirect effect through somatic/autonomic symptom burden was not significant. Significance: Paradoxical relief is substantially more common after FDS than ES and may provide a simple, clinically useful diagnostic signal. Its absence does not exclude FDS, and the finding requires external validation. The association with dissociative symptoms is exploratory and supports prospective investigation of whether relief reflects transient resolution of a disturbed, disembodied preictal state.

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Integrating mouthguard kinematics, finite element brain strain, and plasma biomarkers to explore brain injury thresholds in collision sport

Hickey, J. W.; Chan, E. Y. K.; Evans, L. J.; O'Brien, W. T.; Xie, B.; Roberts, S. S. H.; Butler, S. E.; Ernst, J.; Zhou, W. J. Q.; Zimmerman, K. A.; Spitz, G.; Parker, T. D.; O'Brien, T. J.; Shultz, S. R.; Sharp, D. J.; Ghajari, M.; McDonald, S. J.

2026-08-31 sports medicine 10.64898/2026.08.26.26360869 medRxiv
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Purpose: Identifying head impacts linked to brain injury in sport remains challenging. Instrumented mouthguards quantify head-impact kinematics, and finite element (FE) modelling can transform these data into brain strain estimates, which may better reflect injury risk than kinematics alone. Here, we examined associations between mouthguard-measured kinematics, FE-derived strain, and plasma brain injury biomarker GFAP following head impacts. Methods: We analysed 41 video-verified impacts from male Australian football players, including 22 assessed for concussion (17 diagnosed) and 19 unassessed. Instrumented mouthguards recorded peak linear acceleration (PLA), peak rotational acceleration, and peak rotational velocity (PRV). Brain strain was estimated using the Imperial College FE brain model, and plasma GFAP was quantified using Simoa. Biomechanical-GFAP associations were examined using Spearman correlations and segmented regression. Results: For impacts overall, plasma GFAP was moderately correlated with PLA ({rho}=0.46, 95% CI: 0.20-0.66), PRV ({rho}=0.53, 95% CI: 0.20-0.78), and strain ({rho}=0.60, 95% CI: 0.32-0.80). Associations were stronger within concussion cases for strain ({rho}=0.86, 95% CI: 0.58-0.97) and PRV ({rho}=0.64, 95% CI: 0.15-0.93). Piecewise regression identified strain levels above which strain-GFAP relationships steepened across the whole-brain and brainstem. In concussion cases, supra-threshold brainstem strain was associated with greater symptoms. Conclusion: Finite element brain strain may better predict brain injury risk following a sport-related head impact than peak acceleration metrics. Stronger associations with plasma GFAP, particularly among concussion cases, and evidence of a biomechanical threshold, support the use of biomarker-informed strain measures in future risk modelling and the development of brain injury screening thresholds.

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Mechanical elements related to the development of patellofemoral pain syndrome, pain intensity, and functional disability: A cross-sectional study

Yaghoubi, N.; Eghbali, M.; Soleimanifar, M.; Hashemirad, F.; Arab, A.

2026-08-31 rehabilitation medicine and physical therapy 10.64898/2026.08.26.26361453 medRxiv
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Background and purpose: Patellofemoral pain syndrome (PFPS) is a multifaceted condition where proximal, local, and distal factors may contribute to symptoms and limitations. How these factors collectively contribute to PFPS remains poorly understood. Therefore, this study compared proximal, local, and distal mechanical characteristics between individuals with and without PFPS and investigated their association with pain intensity and functional disability. Methods: Eighty participants were included: 40 individuals with unilateral or bilateral PFPS, 40 healthy controls. Isometric muscle strength of hip, trunk, and ankle was assessed using a handheld dynamometer. Joint alignment (Q-angle, rearfoot angle, pelvic tilt) and muscle flexibility (iliotibial band, hamstrings, quadriceps, gastrocnemius, and soleus) were measured using standard clinical techniques. Pain severity was assessed using a visual analog scale (VAS), and functional disability was evaluated using the Kujala score. Results: Individuals with PFPS showed reduced iliotibial band flexibility, decreased hamstring and soleus length, lower hip abductor strength, and greater anterior and lateral pelvic tilt (all p < 0.02). Multivariate analysis identified reduced iliotibial band flexibility (OR = 7.48) and greater anterior pelvic tilt (OR = 11.75) as independent associates of PFPS. Anterior pelvic tilt predicted pain severity, while anterior trunk muscle strength and Q-angle predicted disability. Discussion: Reduced iliotibial band flexibility and increased anterior pelvic tilt were independently associated with PFPS, while anterior pelvic tilt predicted pain severity and anterior trunk muscle strength and Q-angle predicted functional disability. Clinical assessment and rehabilitation of PFPS should therefore extend beyond the knee to include iliotibial band flexibility, pelvic alignment, and trunk muscle strength.

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Antiseizure Medication Administration Gaps Across the ICU-to-Floor Transfer: A Matched Within-Patient Comparison

Gorenshtein, A.; Adiniaev, Y.; Srour, A.; Klang, E.; Daniel, O.

2026-08-31 neurology 10.64898/2026.08.26.26361462 medRxiv
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Objective: Whether a scheduled antiseizure medication (ASM) continues on schedule across the ICU-to-floor transfer has not been characterized. We quantified ASM administration-gap frequency across this transfer and compared it with gap frequency during matched non-transfer intervals in the same patient and drug. Methods: In this retrospective MIMIC-IV (version 3.1) cohort study, we identified epilepsy and status-epilepticus admissions with an ICU stay followed by floor transfer and a scheduled ASM order active at ICU departure. A gap was defined as an interval exceeding 1.5 times the expected dosing interval between the last ICU dose and first floor dose, or no further dose before discharge, and compared with a matched non-transfer control interval in the same patient and drug (paired McNemar test). A multivariable model evaluated six prespecified clinical predictors; sociodemographic variables were summarized descriptively. Results: Among 2,469 ASM transition-by-drug observations (1,583 admissions, 1,335 patients), an administration gap occurred in 251 (10.2%; 95% CI, 8.7%-11.7%). Gap frequency across the transfer exceeded frequency during matched non-transfer control intervals in the same patient and drug: a paired rate difference of 5.8 percentage points (95% CI, 4.4-7.1; 7.5% vs 1.7%; P = 7.3 x 10^-22) before the transfer and 6.4 percentage points (95% CI, 4.9-7.9; 8.9% vs 2.5%; P = 1.9 x 10^-23) after. Gap rates were similar for intravenous-available (9.9%) and oral-only (11.4%) drugs (rate difference, 1.5 percentage points; 95% CI, -1.6 to 4.5; P = .34). None of six prespecified predictors reached significance after correction. Significance: An antiseizure medication administration gap occurred in approximately 1 of every 10 drug-transition observations at the ICU-to-floor transfer, exceeding matched non-transfer gap rates by 5.8 to 6.4 percentage points. This transfer-associated excess, rather than any single medication or patient characteristic, supports a structured medication-continuity check.