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BMJ Paediatrics Open

BMJ

Preprints posted in the last 90 days, ranked by how well they match BMJ Paediatrics Open's content profile, based on 21 papers previously published here. The average preprint has a 0.04% match score for this journal, so anything above that is already an above-average fit.

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Availability and Quality of Anthropometric Data in Swiss Childrens Hospitals: The SwissPedGrowth Project

Leuenberger, L. M.; Shoman, Y.; Romero, F.; Deligianni, X.; Hartung, A.; Mozun, R.; Goebel, N.; Bielicki, J. A.; Burckhardt, M.-A.; Latzin, P.; Saner, C.; Posfay-Barbe, K. M.; Schwitzgebel, V.; Giannoni, E.; Hauschild, M.; Stocker, M.; Righini-Grunder, F.; Lauener, R.; Mueller, P.; Schlapbach, L. J.; Jenni, O. G.; Spycher, B. D.; Kuehni, C. E.; Belle, F. N.; for the SwissPedHealth Consortium,

2026-03-30 health informatics 10.64898/2026.03.27.26349493 medRxiv
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OBJECTIVE: Anthropometric data are critical in paediatric care, routinely assessed during clinical visits, and available in electronic health records (EHRs). We describe the feasibility of extracting anthropometric data from heterogeneous EHR systems of Swiss childrens hospitals, evaluate their availability and quality, and assess the cohorts representativeness of the general population. METHODS: In this multicentre study (SwissPedGrowth), we retrospectively collected EHRs from patients <20 years who visited hospitals in Basel, Bern, Geneva, Lausanne, Luzern, St. Gallen, or Zurich between 2017-2023. Sociodemographic, administrative, and clinical information from EHRs were provided in a standardized way by a paediatric national data stream (SwissPedHealth), including the Swiss Neighbourhood Index of Socioeconomic Position (Swiss-SEP). We counted anthropometric recordings per visit to describe availability and used a self-developed and an existing (growthcleanr) algorithm to investigate data quality. To assess representativeness, we compared sociodemographic characteristics between SwissPedGrowth and the general paediatric population in Switzerland, computed standardized differences (effect size: 0.2 small, 0.5 medium, 0.8 large), and weighted the study population to reduce differences. RESULTS: We included 477,531 patients and 2,171,633 hospital visits; 54% boys, 71% Swiss, mean Swiss-SEP 65 (SD: 11), and median age at visit 6.3 [IQR: 2.3, 11.8] years. Height recordings were available for 20% of the visits, weights for 43%, and head circumferences for 5%, with better availability for inpatient stays than outpatient or emergency visits. Combining the self-developed and existing algorithm, 4% of heights and 3% of weights were flagged as outliers and 29% of heights and 31% of weights as carried forward from previous visits or same day duplicates. Sociodemographic differences between SwissPedGrowth and the general population were small or small-to-medium and disappeared after weighting. CONCLUSION: SwissPedGrowth demonstrates feasibility of extracting high-quality anthropometric data for paediatric growth research, but challenges regarding completeness and harmonization of EHR data across Swiss hospitals remain.

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Neurodiversity in the Paediatric Chronic Pain Clinic: An Audit

Buechner, H.; Themistokleous, G.; Orr, M.; Lawson, E.; Smart, E.; Donaghy, A.; Wallace, E.

2026-06-03 pediatrics 10.64898/2026.06.02.26354725 medRxiv
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Objective: To compare the characteristics, management and outcomes of neurodivergent (ND) children with neurotypical (NT) children attending a chronic pain clinic. Design: An audit of all patients attending the clinic from 2010-2025 using electronic patient records. Setting: A tertiary pain centre in Scotland. Patients: 724 patients were included in the analysis, 193 (26%) were neurodivergent. Patients were included if they had a documented referral to the pain clinic and attendance to at least one clinic appointment. Patients were excluded if no pain clinic letter could be found on their records. Results: There was a significant increase in the percentage of children with neurodiversity attending the chronic pain clinic compared to neurotypical children (p = 0.004) accounting for over a third of children last seen in the period of 2023-2025. ND children were most likely to present with musculoskeletal pain compared with NT children (p = 0.033) representing over half of all ND children's presentations with pain. ND children were more likely to report being bedbound (18% ND, 13% NT, p = 0.0352) or needing a walking aid (40% ND, 25% NT, p = 0.000) due to chronic pain and had a higher number of referrals (ND median = 18.4, 1QR, NT median = 12.44, IQR10.28 p = 0.000). ND children were more likely to live in areas of deprivation (Cochran-Armitage test, Z -2.15, p = 0.0315). Conclusions: Children with neurodiversity are overrepresented in the chronic pain clinic, and more often present to tertiary services with musculoskeletal pain. They are more likely to have multiple referrals, spend longer with the pain service and less likely to be discharged due to pain improvement. These findings highlight the need for focused strategies to address chronic pain in neurodivergent children. Services should consider how best to identify and support children with neurodiversity and chronic pain. Key Messages {middle dot} What is already known on this topic: While there has been research regarding the role of neurodiversity in pain perception, there are gaps in knowledge regarding the influence of neurodiversity on the development and persistence of chronic pain in children. {middle dot} What this study adds: A growing proportion of neurodiverse children attended the pain clinic. Neurodiverse children presented with more severely impactful pain, they spent a longer duration of time within the pain clinic and were less likely to be discharged due to pain improvement. {middle dot} How this study might affect research, practice or policy: Identifying neurodiverse children as a patient group with distinct requirements may prompt adaptations in chronic pain management practices. This audit provides an initial framework for subsequent research.

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Experiences of family caregivers regarding the health of children with congenital craniofacial anomalies in Colombia

Lafaurie, M. M.; Vargas-Escobar, L. M.; Gonzalez, M. C.; Rengifo, H. A.

2026-04-20 pediatrics 10.64898/2026.04.17.26351082 medRxiv
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Recognizing the challenges faced by primary caregivers regarding the health of children with congenital craniofacial anomalies (CCAs) contributes to strengthening healthcare programs according to patient[s] and families differential needs. This qualitative study presents the experiences of 25 caregivers of children with CCAs from Bogota and Cali, Colombia, identified from care registries and consultation statistics provideed from public high-complexity healthcare institutions. Grounded in Giorgis descriptive phenomenology and employing thematic analysis, this research utilized semi-structured interviews and focus groups to explore the diagnostic process and its impact, experiences with healthcare services, and the caregivers role and daily care activities. Data were analyzed using MAXQDA(R) qualitative software. Findings highlighted the emotional complexity of caring for childre[n]s health. Challenges included late diagnoses, pessimistic views of the children with CCAs condition by healthcare team members; lack of effective support, information, and guidance from health staff; absence of clear care and referral protocols, and limited access to specific adaptations and timely specialized care for children with CCAs. There were also reduced therapeutic services, and a pronounced gendered caregiving burden when responsibilities fall almost exclusively on mothers. System fragmentation, reflected in deficiencies in communication and a lack of clear, coordinated, and timely pathways of care, as well as the absence of adequate psychosocial support for families, emerged as common structural problems in healthcare services in both geographic settings where this research has been conducted. Gender-sensitive strategies focused on alleviating emotional concerns and the burden of caregiving from diagnosis onward within a patient and family-centered care model are decisive. Improving comprehensive CCAs training for healthcare personnel and making adjustments to care pathways are suggested to contribute to the implementation of inclusive health programs that address the diverse needs of children and their families.

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Paediatric haematopoietic stem cell transplantation research priorities: results from an international multi-stakeholder Priority Setting Partnership

Williams, E.; Dyas, R.; Colman, K.; Kinsella, S.; Gwee, A.; Lovell, A.; Gennery, A. R.; Slatter, M.; Chait-Rubinek, L.; Van Der Stoep, E.; Lankester, A.; Mekelenkamp, H.; Gelbart, B.; Nicholson, K.; McLeman, L.; Shanthikumar, S.; Clifford, V.; Cole, T.; Haeusler, G. M.; Ott de Bruin, L. M.; Prestidge, T.; Nelson, A.; Rao, K.; Conyers, R.

2026-03-20 pediatrics 10.64898/2026.03.18.26348770 medRxiv
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Co-designed research in paediatric HSCT is limited. We sought to determine research priorities which represent the shared priorities of patients, parents, carers, and healthcare professionals (HCP) within Australia, New Zealand, the Netherlands and United Kingdom. An international, multiphase priority-setting methodology was implemented in partnership with the James Lind Alliance and delivered over an 18-month period. Part 1: an international scoping survey asked respondents to submit their research uncertainties related to paediatric HSCT. Part 2: summarising and evidence-checking the submitted uncertainties. Part 3: interim prioritisation survey. Part 4: consensus workshop. In the first international scoping survey, 667 topic ideas were suggested (45% by consumers, 55% by HCP), which were categorized into 80 summary questions. After systematic literature review, 35 summary questions were judged to be true uncertainties (i.e. not answered by existing evidence). These 35 uncertainties were included in a second interim prioritisation survey, completed by 224 participants. From those, a shortlist of 19 questions was drawn. After a multistakeholder workshop, consensus was reached on the top 10 priorities. The PSP identified important research gaps in the management of paediatric HSCT. Priority areas included: implementing personalised medicine approaches, improving immune recovery and adjunct interventions such as exercise, nutrition and microbiome-directed strategies.

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Vision, hearing, and intellectual disabilities in school-age children (5-19 years) in Latin America and the Caribbean

Coelho, J. A. P. d. M.; Nascimento da Paixao, A.; Guimaraes Almeida, B.; Näslund-Hadley, E.

2026-04-23 health economics 10.64898/2026.04.21.26351429 medRxiv
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BackgroundChildhood sensory and intellectual disabilities represent significant yet under-recognized barriers to learning and human capital development. This study analyzes prevalence and severity of these conditions among 149.3 million children aged 5-19 years across 25 countries in Latin America and the Caribbean (LAC) using Global Burden of Disease 2023 data. MethodsWe extracted GBD 2023 estimates for vision loss, hearing loss, and intellectual disability across 25 LAC countries, stratified by age, sex, and severity. Regional estimates were calculated using population-weighted averages. Severity distributions were compared with OECD countries to contextualize regional patterns. ResultsThese conditions are estimated to affected 9,282,921 children (6.22%; 95% UI: 5.89-6.54%). Hearing loss was predominant, affecting an estimated 5.42 million (3.63%, 3.41-3.86), with 87.6% mild-to-moderate. Intellectual disability estimated to affected 2.56 million (1.71%, 1.58-1.85), with 61.7% borderline-to-mild. Vision loss estimated to affected 1.30 million (0.87%, 0.79-0.96), with 89% that can be effectively addressed with spectacles. Prevalence increased with age across all conditions. Male predominance was consistent for intellectual disability (2.00% vs 1.42%). Annual economic cost totaled US$19.3-29.0 billion, while comprehensive interventions would require US$9.45-14.23 billion with benefit-cost ratios of 2:1 to 15:1. ConclusionsThe distribution of children across milder levels of difficulty underscores the opportunity for education and public health systems to provide timely and accessible support. With approximately 88% of sensory impairments addressable through established technologies, investments in inclusive services can yield strong social and economic returns.

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Thoracostomy Tube Infections: Prevalence and Associated Clinical Characteristics at a Tertiary Hospital in Northern Tanzania

Rwomurushaka, E. S.; Damas, L.; Niccodem, E.; Mwakyembe, T. E.; Msuya, D.; Chilonga, K.; Sango, M.

2026-04-17 surgery 10.64898/2026.04.15.26350981 medRxiv
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BackgroundChest tube infection is one of the complications of the tube thoracostomy. Infectious complications may develop in 2% to 25% of patients who undergo thoracotomy tube placement. The use of prophylactic antibiotics to prevent infections associated with thoracostomy tubes remains a subject of debate. Current practices in managing infections related to tube thoracostomy are hindered by the lack of comprehensive and localised data on the microbial profile and their resistance patterns. ObjectiveTo determine the prevalence of thoracostomy tube infections and associated clinical characteristics among patients treated with a thoracostomy tube at KCMC Zonal Referral Hospital. MethodologyProspective cohort study done at KCMC Zonal Referral Hospital. Include all patients undergoing thoracostomy tube insertion from September 2024 to April 2025. ResultsA total of 84 patients underwent tube thoracostomy during the study time. Of these 22 (26.2%) developed SSI. Out of the 22 samples collected, 17 (77.3%) had positive culture results. The most commonly identified pathogens were Pseudomonas aeruginosa (41.2%) and Staphylococcus aureus (29.4%). The highest overall susceptibility was observed with amikacin, effective against 10 (58.8%) of the tested organisms. The most common resistance was observed against ceftazidime (56.3%) and piperacillin-tazobactam (50.0%). Prolonged chest tube duration (>7 days) was the strongest independent predictor of tube thoracostomy infection. ConclusionThis study revealed a high prevalence of tube thoracostomy infection. Prolonged tube duration and admission to a non-surgical ward care emerge as key risk factors for SSI. These findings underscore the importance of limiting chest tube duration when clinically feasible and ensuring optimal postoperative care environments to minimise the risk of infection.

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Maternal Knowledge and Education-Priority Gaps in Preterm Infant Care in the Gaza Strip, Palestine: A Cross-Sectional Study

Abdeljawad, M.; Najim, A.; Abdeljawad, H.; Rodgers, J.; Almukbel, R.; Mokbel, K.

2026-05-15 pediatrics 10.64898/2026.05.12.26353051 medRxiv
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Purpose: To assess maternal knowledge of preterm infant care in Gaza and identify clinically actionable education priorities in a resource-constrained neonatal setting. Methods: A cross-sectional survey was conducted among 170 mothers of premature infants admitted to neonatal departments in four government hospitals. A 30-item interviewer-administered questionnaire assessed knowledge across thermoregulation, feeding, phototherapy, and infection and skin care. Bivariate analyses, ordinal logistic regression, adjusted predicted probabilities, and exploratory clinical-priority gap analyses were conducted. Results: Overall knowledge was moderate, with a mean score of 64.1% (SD 22.3). Knowledge was classified as poor in 53 mothers (31.2%), good in 41 (24.1%), and excellent in 76 (44.7%). Knowledge differed across domains (p<0.001), with feeding weakest (53.6%) and infection and skin care strongest (73.8%). Not receiving specialist premature-care antenatal follow-up was independently associated with lower odds of higher knowledge (adjusted OR 0.34, 95% CI 0.15-0.80, p=0.013). Mothers without specialist follow-up also had a higher adjusted probability of poor knowledge than those who received it (37.4% vs 18.1%) and more clinical-priority gaps (IRR 1.28, 95% CI 1.04-1.57, p=0.019). Among the 10 lowest-scoring items, 110 mothers (64.7%) had five or more gaps. Conclusion: Maternal knowledge was uneven, with clinically important gaps in practical care domains. Domain-specific education checklists may strengthen antenatal counselling, bedside teaching, and discharge preparation in similar constrained neonatal settings.

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Adult-Learning Newborn Medicine Curriculum Improves Knowledge in a Low-Resource Neonatal Unit in Sierra Leone

Mvula, M.; Amin, A.; Patil, M. S.; Valentine, G.; Mukarwego, B.; Wagner, S.; Dumbuya, I.; Lou, L.; Sanni, U.; Hansen, A.

2026-06-04 pediatrics 10.64898/2026.06.02.26354766 medRxiv
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Background Sierra Leones neonatal mortality rate is among the highest in the world. Koidu Government Hospital opened a Special Care Baby Unit (SCBU) in 2020. To increase knowledge of the SCBU health care providers (HCPs), a neonatal curriculum was implemented to facilitate HCP education on management of neonatal conditions. The aim of this study was to understand the effect of the curriculum on knowledge acquisition and the perception of the teaching methodologies among participating HCPs. Methods US-based mentors facilitated a two-phase, flipped classroom, virtual neonatal medicine curriculum between October 2024 and April 2025, followed by one-week in-person education sessions with SCBU HCPs. With each phase, participants completed pre- and post-test educational assessments. At the end of the curriculum, they completed a subjective assessment to capture perceptions related to the quality of teaching methodologies integrated within the curriculum. Wilcoxon signed rank test was used to assess pre- versus post-test change. Descriptive statistics were used to analyse the subjective assessment. Results Thirty-eight participants completed the educational assessments, 30 (79%) took all four pre- and post-tests; 25/38 (65.8%) were female, 27 (71.1%) were nurses. Median correct answers for both phases increased from the pre- to post-test for individual learners [Phase 1, pre-test 14/27 (51.9%), post-test 23/27 (85.2%), p<0.001], [Phase 2, pre-test 14/25 (56.0%), post-test 23/25 (92.0%), p <0.001]. Thirty-one participants completed the subjective assessment, of whom 96.8% (30/31) rated the curriculum to be "very effective." All 31 participants indicated that the in-person instruction was "very helpful." Through open text responses, they offered valuable insight into challenges, strengths, and next steps. Conclusion This neonatal curriculum resulted in significantly increased knowledge and was well regarded. Adapting this curriculum or similar curricula show promise to improve the quality of care for small and/or sick neonates in low resource settings.

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Catastrophic Health Expenditure Among Gastrointestinal Cancer Patients Undergoing Surgery in Uganda: A Prospective Study

Akello, V. V.; Atieno, C.; Asiimwe, L.; Kurigamba, G. K.; Nakafeero, M.; Nkangi, K.; Kamugisha, D.; Vickos, U.; Jombwe, J.; Waako, R.; Byanyima, R.

2026-03-19 health economics 10.64898/2026.03.18.26347930 medRxiv
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BackgroundThe global burden of gastrointestinal (GI) cancers is projected to rise by 2050, with incidence and mortality in Africa nearly double global estimates. Surgery remains the cornerstone of treatment but imposes substantial financial burdens. In Uganda, where no national health insurance scheme exists, patients are especially vulnerable. We therefore investigated the magnitude of catastrophic health expenditure (CHE) among GI cancer patients undergoing surgery in public hospitals. MethodsA prospective study was conducted over 10 months in the GI surgery wards of a tertiary hospital, with ethics approval. Adults with GI cancer scheduled for surgery were consecutively recruited. Sociodemographic, clinical, and household expenditure data were collected at baseline and discharge. Out-of-pocket (OOP) costs, annual household expenditure, non-food expenditure, and capacity to pay were derived. CHE was assessed using Wagstaff/van Doorslaer and Xu thresholds and determinants of CHE assessed. Results164 participants were recruited, 54.3% were male and 75.0% aged above 50 years. The median out-of-pocket (OOP) expenditure for GI cancer surgery was USD 663, nearly twice the median annual household income. At the 10% threshold, the prevalence of CHE was 64%. Sources of financing for OOP varied by socioeconomic status (SES): households in the highest SES relied primarily on savings, whereas those in the lowest SES depended on asset sales and loans. School fees payment was disrupted, particularly among middle- and low-SES households. Factors independently associated with higher CHE included female sex, formal employment, curative intent of surgery, and low household SES. ConclusionOver half of patients experienced financial toxicity, often selling assets and compromising long-term security. The burden was greatest among poorer households, women, and those undergoing curative surgery. Findings highlight the urgent need for national health insurance in Uganda. Although recall bias may have influenced reporting, critical gaps in financial protection for cancer surgery patients are evident. Summary BoxO_ST_ABSWhat is already known about this topicC_ST_ABSO_LIGastrointestinal cancers are rising in incidence across Africa yet treatment of GI cancers is costly due to the multimodal treatment approaches. GI cancer treatment and surgery lead to catastrophic health expenditures even in high income countries. C_LI What this study addsO_LIThis study evaluates surgery as a key management modality for gastrointestinal cancers and quantifies the catastrophic health expenditure associated with it, found to be 64%. C_LIO_LIIt identifies risk factors for CHE in this context, emphasizing the vulnerability of households undergoing surgical cancer care. C_LIO_LIIt highlights differences in sources of health care financing across socioeconomic strata, revealing inequities in how households mobilize funds. C_LIO_LIIt highlights basic needs that are negatively affected by the shortage of resources such as education, and reveals a high likelihood of future financial hardship due to the impact of crowding out effect on income generating activities. C_LI How might this impact on clinical practice?O_LISurgery remains one of the most cost-effective and potentially curative modalities for gastrointestinal cancers, these findings stress the urgent need for financial risk protection strategies in Uganda. C_LIO_LINational cancer plans should prioritise procurement of specialised surgical equipment and safe guard vulnerable individuals especially females and financially deprived who stand to benefit from curative surgery. C_LI

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Who Supports the Caregivers? Perspectives on Mental Health Screening in Paediatrics.

Coscini, N.; Giallo, R.; Grobler, A.; Hiscock, H.; Mulraney, M.; Pope, N.

2026-06-08 psychiatry and clinical psychology 10.64898/2026.06.04.26354967 medRxiv
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Objectives To explore caregiver and clinicians perspectives on implementing mental health conversations and supports for caregivers of children with chronic conditions in paediatric outpatient clinics. Specifically, views were sought on (a) screening approaches and measures (phase 1) and (b) how feedback and support could be provided to caregivers experiencing mental health difficulties (phase 2). Methods Caregivers and clinicians from two outpatient clinics (neuromuscular and diabetes) at a tertiary paediatric hospital in Melbourne, Australia participated in online focus groups in July and August 2024. Caregivers were recruited from outpatient clinics and clinicians were recruited via email. Both groups were combined for phase 1 before separating into breakout rooms for phase 2. Two authors conducted reflexive thematic analysis of transcripts using NVivo. Results Sixteen participants (caregivers n = 8; and clinicians n = 8) took part in in two semi-structured focus groups. Analysis generated two overarching domains, each comprising multiple themes. Domain 1, Addressing caregiver mental health, captured themes of overwhelm and invisibility, diverse caregiving roles, and the need for time and resources to support wellbeing conversations. Domain 2, Housing the mental health conversation, encompassed themes of screening preferences, caregiver agency in confidentiality, delivery of feedback, and access to tailored supports. Conclusions Caregivers and clinicians support routine caregiver mental health discussions in paediatric outpatient settings. Caregivers favour screening at diagnosis and key transitions, with clear, and actionable feedback delivered away from the child. Questions about record-keeping warrant further exploration, as do the perspectives of fathers.

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Economic analysis of a school-based menstrual health intervention (MENISCUS) among female adolescents in Uganda

Lagony, S.; Bucci, D.; Dwommoh, R. A. K.; Mugenyi, L.; Nelson, K. A.; Obicho, E.; Matovu, F.; Nakalema, S.; Weiss, H. A.; Greco, G.

2026-03-13 health economics 10.64898/2026.03.11.26348207 medRxiv
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Poor menstrual health (MH) has been associated with reduced participation in school activities and diminished psychosocial wellbeing among adolescent girls. Despite increasing recognition of the importance of MH interventions, there is limited economic evidence to inform large-scale adoption and financial planning. We conducted an incremental costing analysis of an MH intervention (MENISCUS) alongside a cluster-randomized trial in 60 secondary schools in Uganda. MENISCUS delivered puberty education, a drama skit, an MH kit, pain management strategies and improvements to water, sanitation and hygiene (WASH) facilities. We categorized the provider costs into start-up and implementation, and calculated unit costs per school, per student (male and female) and per female student respectively. We modelled two potential national scale-up scenarios (basic and enhanced) to 2,995 secondary schools using government delivery structures. The total cost of the basic scenario is US$10,224,685 and the enhanced scenario is US$16,549,123. The unit cost of scaling the intervention nationwide was estimated at US$28 per student and US$58 per female student (basic scenario) and US$46 per student and US$95 per female student (enhanced scenario). The primary cost drivers were the MH kit and associated training, followed by pain management activities and improvements to WASH facilities. The enhanced scenario generated a higher unit cost per student and unit cost per female student due to additional components. Compared with trial costs, unit costs were lower in national scale-up, demonstrating economies of scale. This study provides the first economic analysis of a potential national implementation of a school-based MH intervention in a low-resource setting. The findings provide critical benchmarks for governments seeking to integrate MH into national education curriculum and inform future investment decisions in adolescent health.

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High Perforation Rates in Jejunal Diverticulitis: A Single-Center Retrospective Review

Florescu, N.; Thomas, E. C.; Charles, A.; Aunchman, A.; An, G.

2026-04-06 surgery 10.64898/2026.04.05.26350210 medRxiv
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Background: Jejunal diverticulitis is an uncommon but increasingly recognized cause of acute abdomen. It can present with a range of CT findings, including peridiverticular inflammation, bowel wall thickening, and fecalized small bowel content, with perforation or abscess occurring as complications in roughly 6% of cases. Case reports note varied presentations with jejunal and ileal involvement, treatment ranging from nonoperative management with antibiotics to urgent surgical intervention. Though rare, small bowel diverticulitis, particularly involving the jejunum, can result in significant morbidity, including peritonitis and sepsis, requiring heightened clinical suspicion in elderly or immunocompromised patients. Methods: We conducted a single center retrospective review of patients diagnosed with jejunal diverticulitis in a single academic center's Emergency General Surgery registry between December 2017 and December 2024. Of 42 patients initially identified, 34 had confirmed diagnoses on chart review. Data abstracted included age, sex, imaging modality, presence of perforation, serial physical exams, lab values (CBC, lactate), ICU admission, length of stay (LOS), antibiotic duration, operative status and timing, distance of residence from our institution, disposition after index admission, and readmission within one year. Results: Of the 34 confirmed cases, 24 (71%) were perforated: 2 presented with small bowel obstruction, 16 with abscesses and/or contained perforations, and 1 with both. 19 of the 24 perforated patients required operative intervention: 9 proceeded directly to the OR, 3 on hospital day one, and 2 as late as hospital day six. Among non-operative patients treated with antibiotics alone, the average LOS was 6 days (range: 2-23). Two patients were readmitted within one year: neither had undergone surgery during their index admission and neither were related to their index admission. Overall, three patients died: two during the index admission (both perforated and operated on) and one on readmission. Conclusion: Compared to the 6% complication rate reported in prior literature, our series demonstrates a notably higher rate of perforation (71%) among patients diagnosed with jejunal diverticulitis. Operative intervention was common, though a subset of patients was successfully managed non-operatively with antibiotics. Mortality was limited to patients with significant comorbidities and complex presentations. These findings underscore the heterogeneity in presentation and outcomes and highlight the need for a standardized approach. Development of practice guidelines incorporating clinical, radiographic, and laboratory parameters may improve diagnostic accuracy and guide timely, evidence-based management of this rare but serious condition.

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Natural History of Prenatally Identified Children with 48,XXYY Syndrome in Infancy and Early Childhood

Nocon, K.; Swenson, K.; Bothwell, S.; Howell, S.; Davis, S.; Ikomi, C.; Ross, J.; Tartaglia, N.

2026-06-04 pediatrics 10.64898/2026.06.04.26353909 medRxiv
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Background: 48,XXYY syndrome is a rare sex chromosome aneuploidy (SCA) characterized by neurodevelopmental deficits and medical comorbidities. The limited information available in the literature is almost exclusively limited to postnatally diagnosed cases. This study aims to describe the early medical and developmental features of prenatally identified 48,XXYY infants, with comparisons to 47,XYY, 47,XXY cohorts, and typical populations, as well as previously reported postnatally diagnosed 48,XXYY cases. Methods: The eXtraordinarY Babies Study prospectively follows children prenatally identified to be at high risk for SCA with annual medical and neurodevelopmental evaluations. Data presented herein include the prevalence of medical conditions, developmental milestones, developmental and adaptive functioning assessment scores, and therapy utilization in participants confirmed to have 48,XXYY. Comparisons were made between this cohort and the typical population, infants with 47,XYY and 47,XXY also enrolled in the eXtraordinarY Babies Study, and a 2008 cohort of individuals postnatally identified 48,XXYY. Results: Infants with 48,XXYY exhibited a range of early medical features, including high rates of feeding and GI disorders (breastfeeding difficulties, gastroesophageal reflux, and eosinophilic esophagitis), allergic disorders (food allergies and environmental allergies), and hypotonia. Developmental and adaptive functioning scores indicated delays in motor, communication, and social domains, with nearly all infants receiving speech therapy, physical and/or occupational therapy. Comparisons with the 47,XYY and 47,XXY cohorts revealed more medical and developmental challenges in the 48,XXYY group, however there was variability and some overlap with both the general population and sex chromosome trisomy conditions. Additionally, comparison to the 2008 postnatally identified 48,XXYY cohort indicated that while prenatal diagnosis allowed for earlier intervention, developmental outcomes in the first years of life were similar between the two groups. Conclusions: 48,XXYY diagnosed prenatally facilitates early monitoring, anticipatory guidance, and proactive referrals for medical evaluations and intervention, given developmental delays and medical challenges are more common in infancy and early childhood compared to the general population and trisomy SCAs. These findings provide valuable insights for genetic counselors and healthcare providers, emphasizing the spectrum of medical and developmental findings and importance of early and proactive care to support individual outcomes. Prospective study of this prenatally identified cohort will provide important natural history and phenotypic variability in XXYY, as well as identification of predictors of health and developmental outcomes.

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Triage Administration of Ondansetron for Gastroenteritis in children; a randomized controlled trial

Weill, O.; Lucas, N.; Bailey, B.; Marquis, C.; Gravel, J.

2026-04-15 pediatrics 10.64898/2026.04.13.26350796 medRxiv
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ObjectivesAcute gastroenteritis is a leading cause of pediatric emergency department (ED) visits. While ondansetron reduces vomiting, intravenous rehydration, and hospital admissions, its efficacy when initiated at triage remains unclear. We aimed to evaluate whether triage nurse-initiated administration of ondansetron in children with suspected gastroenteritis reduces the proportion of patients requiring observation following initial physician assessment. MethodsWe conducted a randomized, double-blind, placebo-controlled trial in a tertiary pediatric ED in Canada. Children aged 6 months to 17 years presenting with morae than 3 episodes of vomiting in the preceding 24 hours (including 1 within 2 hours of arrival), were eligible. At triage, we randomized participants to receive liquid ondansetron or a color- and taste-matched placebo. The primary outcome was the proportion of patients requiring observation after the first physician evaluation. Secondary outcomes included post-intervention vomiting, ED length of stay, patient comfort, and 48-hour return visits. The trial was registered at ClinicalTrials.gov (NCT03052361). ResultsRecruitment was stopped prematurely due to the COVID-19 pandemic. Ninety-one participants were randomized to ondansetron (n= 44) or placebo (n= 47). Overall, 40 patients (45%) were discharged immediately after the initial physician assessment, with no difference between the ondansetron and placebo groups (44% vs. 45%; absolute difference -1%, 95% CI: -20% to 19%). No significant differences were observed in all secondary outcomes. ConclusionIn this trial, triage nurse-initiated ondansetron administration did not reduce the need for ED observation in children with presumed gastroenteritis. While being underpowered, this study could inform researchers planning larger clinical trials.

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Time to Discharge and Associated Factors Among Preterm Neonates Admitted to Kiwoko Hospital, Nakaseke District, Uganda: A Competing Risks Analysis

Mutibwa, S.; Wandiembe, S.; Mbonye, K.; Nsimbe, D.

2026-04-15 pediatrics 10.64898/2026.04.13.26350793 medRxiv
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BackgroundPreterm births contribute to approximately 35% of neonatal deaths globally, with an estimated 13.4 million infants born prematurely each year. Despite this substantial burden, limited evidence exists on time to discharge and its determinants among preterm neonates admitted to Neonatal Intensive Care Units (NICUs), particularly in rural Ugandan settings. This study aimed to investigate time to discharge and associated factors among preterm neonates admitted to Kiwoko Hospital in Nakaseke District, Uganda. MethodsA retrospective cohort study was conducted using secondary data from Kiwoko Hospital on preterm neonates admitted to the Neonatal Intensive Care Unit (NICU) between 2020 and 2021 (n = 847). The cumulative incidence function was used to estimate the probability of discharge within 28 days of admission, accounting for competing events. A Fine and Gray sub-distribution hazard regression model was fitted to identify factors associated with time to discharge. ResultsOf the 847 preterm admissions, 70.1% were discharged alive within 28 days. The median time to discharge was 14 days. The cumulative incidence of discharge by 28 days was 68%, accounting for competing events. During follow-up, 165 neonates did not complete the 28-day period, including 88 deaths. Factors significantly associated with time to discharge included place of delivery (SHR: 0.62; 95% CI: 0.53-0.73; p<0.001), maternal residence in other districts (SHR: 0.69; 95% CI: 0.48-0.99; p=0.044), extreme preterm (SHR: 0.05; 95% CI: 0.03-0.09; p<0.001), very preterm (SHR: 0.18; 95% CI: 0.14-0.25; p<0.001), moderate preterm (SHR: 0.59; 95% CI: 0.46-0.76; p<0.001), triplet births (SHR: 0.40; 95% CI: 0.23-0.68; p=0.001), 2-4 ANC visits (SHR: 0.70; 95% CI: 0.56- 0.87; p=0.002), [&le;]1 ANC visit (SHR: 0.64; 95% CI: 0.49-0.85; p=0.002), respiratory distress syndrome (SHR: 0.64; 95% CI: 0.48-0.74; p<0.001), and birth trauma (SHR: 2.62; 95% CI: 1.60- 4.29; p<0.001). ConclusionsRespiratory distress syndrome, fewer antenatal care visits, out-of-district residence, and higher degrees of prematurity were associated with prolonged time to discharge among preterm neonates. Strengthening antenatal care utilization and improving access to quality neonatal care in underserved areas may enhance discharge outcomes.

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Assessment Of Anastomotic Leak During the Implementation of Laparoscopic Surgery for Rectal Cancer in Morocco: 21-years Retrospective Study

BENAMMI, S.; Sekkat, H.; Bakali, Y.; Alaoui, M.; Sabbah, F.; Rais, M.; Hrora, A.

2026-03-24 surgery 10.64898/2026.03.21.26348966 medRxiv
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Background Anastomotic leakage (AL) is a major postoperative complication following rectal surgery, leading to increased morbidity, poor oncologic outcomes, and reduced quality of life. While significant data exist regarding rectal cancer management in developed countries, studies from developing nations remain limited. This study aims to evaluate the incidence of AL in rectal cancer surgery during the introduction of minimally invasive surgery (MIS) at a referral center in a developing country. Methods A retrospective study was conducted at Ibn-Sina University Hospital from 2001 to 2022, including patients who underwent curative rectal cancer surgery. Data were analyzed descriptively with continuous variables presented as mean, median, and standard deviation, while categorical variables were reported as frequencies and proportions. Univariable analysis identified risk factors associated with AL, using appropriate statistical tests for continuous and categorical variables. Results A total of 306 patients were included, with 39.9% undergoing minimally invasive procedures and 60.1% open surgeries. AL occurred in 16.3% of cases, with higher rates (19.1%) before 2014, compared to 9.1% afterward. Pre-2014, tumor location (p=0.011), surgical resection (R0 vs. R1, p=0.002), and the use of a diverting stoma (p=0.008) were associated with AL. Post-2014, no significant risk factors were identified for AL. Discussion This study provides valuable insights into rectal cancer surgery outcomes in a developing country. AL rates aligned with global data, showing a reduction after the implementation of MIS. The risk factors identified before 2014 can be attributed to surgical complexity, while the low AL rate post-2014 suggests improved surgical techniques. Conclusion Assessing the risk of AL is vital for early intervention and optimal surgical planning. The study highlights the advantages and challenges of implementing minimally invasive surgery in developing countries, emphasizing the need for more data in such settings.

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Predicting Infant Nonattendance at the Next Recommended Well-Child Visit: Model Development and Validation

Luff, A.; Shields, M.; Hirschtick, J.; Ingle, M.; Crosh, C.; Marsh, M.; Modave, F.; Fitzpatrick, V.

2026-03-26 pediatrics 10.64898/2026.03.24.26348063 medRxiv
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BackgroundWell-child visits (WCVs) are essential for preventive care, yet missed appointments often lead to delayed interventions. We developed and validated models to predict next-visit nonattendance using routine electronic health record data. MethodsUsing data from two Chicago-area pediatric practices, Practice A (1,215 patients; 3,654 visits) and Practice B (1,271 patients; 3,044 visits), we compared regularized logistic regression, random forest, and XGBoost models. Predictors included visit context, prior utilization, and patient characteristics. Models were trained on Practice A and validated on Practice B. ResultsMissed-next-visit rates were 16.2%(A) and 20.7%(B). In external validation, performance was similar across models (AUC 0.66-0.68). At the threshold maximizing F1 score, recall ranged from 0.54-0.71. The LASSO logistic regression model identified six key predictors: timepoint, visit delay, prior no-shows, schedule lead time, new patient status, and immunization refusal. SHAP values confirmed these process measures as among the most influential features across all models. ConclusionPredicting WCV nonattendance is feasible using routine data. A simple logistic regression model performs comparably to complex algorithms, offering a practical pathway for clinical integration. By identifying at-risk families during a current appointment, this may enable clinicians to provide proactive support to support preventive care before a lapse occurs. ImpactO_LIMissed well-child visits are common, leading to an increasing number of preventable acute care visits, delayed recognition of developmental delays, and missed opportunities to initiate early intervention C_LIO_LIA multimodal approach is needed to support well-child visit attendance C_LIO_LIMachine learning is an emerging tool to predict well-child visit no show rates with implications for future interventions to support families at risk for missing well-child visits and promote positive health outcomes C_LI

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National Norms and Psychometrics for the Pubertal Development Scale

Liu, Y.; Bonny, A. E.; Youngstrom, E. A.

2026-03-27 pediatrics 10.64898/2026.03.25.26349307 medRxiv
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Introduction: The Pubertal Development Scale (PDS) is widely used for puberty assessment, yet its psychometric properties and norms are limited to research data. This study examined the psychometric properties of parent- and self-report PDS and established continuous norms in nationally representative samples. Methods: We analyzed two deidentified survey samples: a parent-report sample of children aged 6-18 (N=2000, Mage=11.37, 47.2% female, 74.9% White), and a youth self-report sample aged 12-18 (N=754, Mage=14.33, 49.6% female, 75.3% White). Both samples were representative of the U.S. population on key demographics, and the self-report sample consisted entirely of children whose parents also participated in the parent sample, thus creating parent-child dyads. Internal consistency was evaluated using Cronbach's alpha and McDonald's Omega. Cross-informant agreement was assessed with Intraclass Correlation Coefficient (ICC; two-way model, absolute agreement, single unit) and Bland-Altman plots. Age-dependent norms of each sex were established with Generalized Additive Models for Location, Scale, and Shape (GAMLSS), with 5th-95th percentile curves and reference tables provided. Results: Parent- and self-report PDS demonstrated acceptable-to-good internal consistency (Cronbach's alpha: 0.78-0.89; McDonald's omega: 0.79-0.90). Among the 754 parent-youth dyads, excellent cross-informant agreement was observed for both sexes (ICC(2,1)=0.88). Parents' and children's PDS total scores did not differ significantly for boys; for girls, parents rated pubertal development on average 0.13 points lower than children's self-report. Regardless of informants, PDS scores increased nonlinearly with age and exhibited sex-specific developmental patterns. Girls showed earlier pubertal onset, faster progression, and greater convergence toward pubertal completion by late adolescence. Discussion: The PDS demonstrated strong psychometrics in national samples, supporting its utility in the general pediatric population. The national norms provide empirical benchmarks for PDS score interpretation, strengthening its value as a broad estimation of pubertal status and a pre-screening tool for identifying early or delayed puberty.

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The children left behind - the cumulative impact of congenital anomalies, long-term conditions and poverty on educational attainment in Wales: a population databank linkage study

Scanlon, I.; Rawlings, A.; Tucker, D.; Thayer, D. S.; Evans, H. T.; Given, J.; Jones, S.; Loane, M.; Morgan, C.; Morris, J. K.; Jordan, S.

2026-04-02 public and global health 10.64898/2026.04.01.26349936 medRxiv
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Background Education outcomes predict life chances. However, poverty, ill-health and disability are barriers to achievement. We examined determinants of academic attainment of children with and without major congenital anomalies in state-funded mainstream schools at ages 11 and 16 (key stages [KS] 2 and 4). Methods and Findings Routinely collected electronic records for children born in Wales 01/01/1998-31/12/2007 until 31/12/2019 were linked in the Secure Anonymised Information Linkage (SAIL) Databank. Education outcomes were explored using logistic regression, adjusting for: anomalies, maternal and child deprivation, prescribing, hospitalisation, gestation length, childs sex, and special education needs (SEN) provision. Children with anomalies were less likely to achieve academic standards: however, attainment was more closely associated with affluence. At age 11, 81.87% (7167/8754) with and 93.80% (232,450/247,814) without anomalies passed (odds ratio [OR] 0.30, 95% confidence intervals [CI] 0.28-0.32). At age 16, 46.76% (2070/4427) with and 56.10% (69,732/124,300) without anomalies achieved 5 General Certificates of Secondary Education (GCSEs) at grades C-A* including English/Welsh, Maths and Science (EWMS) (OR 0.69, 0.65-0.73). Discrepancies narrowed in adjusted analyses, particularly when SEN provision was accounted: aOR 0.72 (0.66-0.78) at KS2, and aOR 0.93, (0.87-1.00) for 5 GCSEs C-A* with EWMS. These GCSEs were achieved by 29.65% (307/1034) children with anomalies and 38.42% (10,875/28,305) of unaffected children in the most deprived quintile{dagger}: in the most affluent quintile, figures were 67.57% (547/810) and 74.98% (16,978/22,644). Children with anomalies, receiving maximum SEN support, eligible for Free School Meals (FSM) were the least successful: 5/192 (2.6%) passed 5 GCSEs C-A* with EWMS, as did 37/354 (10.4%) ineligible for FSM. The strongest associations with these GCSEs were SEN statements (aOR 0.07, 0.06-0.07), FSM eligibility (aOR 0.39, 0.37-0.41), and epilepsy (aOR 0.60, 0.45-0.80). However, data were unavailable for 15-18% of children, mainly those educated outside mainstream schools, and some co-morbidities. Generalisation of findings to other countries rests with readers. Conclusions Many children with anomalies from affluent households succeeded. The children left behind lived with poverty and ill-health from congenital anomalies and/or epilepsy. SEN provision mitigated the impact of disadvantage, but poor children with anomalies were unlikely to succeed. {dagger}taking maternal Welsh Index of Multiple Deprivation (WIMD) 2014 at birth.

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An Exploratory Study on the Long-Term Impact of Voiding Cystourethrogram (VCUG)

McDonald, A.; Sullivan, K.

2026-04-17 pediatrics 10.64898/2026.04.15.26350983 medRxiv
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OBJECTIVEThis study investigates the long-term impacts of childhood exposure to voiding cystourethrogram (VCUG), a diagnostic procedure for vesicoureteral reflux. Primary outcomes include long-term health outcomes, mental health disorders, healthcare avoidance, and participation in risky behaviors compared to a control group. METHODSA 9-month retrospective cohort study was conducted with adults who received most of their medical care in the U.S. Respondents self-reported health metrics, behaviors, and outcomes via a 20-minute survey. Respondents were divided into two groups: those who remembered undergoing at least one VCUG in childhood (VCUG group), and those who did not (control group). RESULTSOf 334 respondents, 204 (61%) were in the VCUG group (mean age: 29, 70% female) and 130 (39%) were controls (mean age: 34, 70% female). Notable findings include: 47% of VCUG respondents were diagnosed with depression compared to 27% of controls ({chi}{superscript 2} = 13.51, p = 0.0002); 15% of female-born VCUG respondents reported they would never visit a gynecologist compared to 2% of controls ({chi}{superscript 2} = 17.29, p < 0.001); 34% of VCUG respondents smoked regularly compared to 5% of controls ({chi}{superscript 2} = 35.85, p < 0.001); and 11% of VCUG respondents regularly missed work compared to 1% of controls ({chi}{superscript 2} = 11.61, p = 0.0006). These findings highlight the need for further research and clinical consideration of VCUGs long-term consequences. CONCLUSIONSThis study suggests that the effects of childhood VCUG extend into adulthood. Our findings underscore the need to reassess informed consent protocols and consider full-scale studies to minimize bias.