biostudies-literatureZhuang LCapital Medical Development Research Fund of BeijingNational Natural Science Foundation of China12275https://www.ebi.ac.uk/biostudies/studies/S-EPMC9293978biostudies-literatureUnknown12(1)To find the risk of time thresholds of PROM for infectious diseases of term neonates. A multi-center prospective cohort study including pregnancies with PROM at term with a single fetus were conducted. Time thresholds of the duration from PROM to delivery were examined in 2-h increments to assess the rates of infectious neonatal diseases. 7019 pregnancies were included in the study. Neonatal pneumonia and sepsis were most frequent infectious diseases in neonates born from mother with PROM at term. Rates of early-onset pneumonia varied significantly when comparing length of time of PROM greater than 16 h vs. less than 16 h (for EOP in 3 days of life, adjusted OR 1.864, 95% CI 1.159 ~ 2.997, p = 0.010; for EOP in 7 days of life, adjusted OR 1.704, 95% CI 1.104 ~ 2.628, p = 0.016). Neonates bScientific reportsLatency period of PROM at term and the risk of neonatal infectious diseases.PMC92939782005304481170602Yu CZZhu YFHua SDCui JChen XYPeng JYLi ZKLi LZeng WLi XLi TFeng ZCZhuang LJu RZhang YPYu YfalseLatency period of PROM at term and the risk of neonatal infectious diseases.To find the risk of time thresholds of PROM for infectious diseases of term neonates. A multi-center prospective cohort study including pregnancies with PROM at term with a single fetus were conducted. Time thresholds of the duration from PROM to delivery were examined in 2-h increments to assess the rates of infectious neonatal diseases. 7019 pregnancies were included in the study. Neonatal pneumonia and sepsis were most frequent infectious diseases in neonates born from mother with PROM at term. Rates of early-onset pneumonia varied significantly when comparing length of time of PROM greater than 16 h vs. less than 16 h (for EOP in 3 days of life, adjusted OR 1.864, 95% CI 1.159 ~ 2.997, p = 0.010; for EOP in 7 days of life, adjusted OR 1.704, 95% CI 1.104 ~ 2.628, p = 0.016). Neonates b2022-01-01T00:00:00Z2022 Jul2025-04-19T15:25:17.912Z2024-11-10T02:25:12.222ZS-EPMC92939783585130610.1038/s41598-022-16593-6