Association between sleep and seroconversion after vaccination with inactivated SARS-CoV-2 in pregnant women
Han, X.; Yang, W.; Zhang, X.; Chen, B.; Fu, X.; Huang, J.; Xu, Y.; Gong, Y.; CHEN, Q.
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To assess the association between sleep and seroconversion after receipt of two doses of inactivated severe acute respiratory syndrome-coronavirus-2 (SARS-CoV-2) vaccines in pregnant women. The serum level of immunoglobulin (Ig)G antibodies against the nucleic acids of SARS-CoV-2 was measured. Logistic regression was used to analyze the association between sleep and seroconversion. After two doses of SARS-CoV-2 vaccine, 41.2% of the study cohort reached seroconversion. Analysis revealed that pregnant women with poor quality of sleep had a lower serum level of IgG antibodies (P = 0.008, 95%CI = 0.285-0.826) and that sleeping late at night (SLaN) may be a risk factor for a low serum level of IgG antibodies (P = 0.025, 95%CI = 0.436-0.946). Besides sleep, age and the time since vaccination were important influences on seroconversion. A stratified analysis revealed that the effects of sleep quality and SLaN on seroconversion occurred mainly in pregnant women aged <35 years. Thus, sleep quality and SLaN can affect the serum level of IgG antibodies in pregnant women after vaccination with inactivated SARS-CoV-2.
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