Journal of perinatology : official journal of the California Perinatal Association · 2025
Risk of unexpected newborn complications by day of the week and time of birth in US term singleton births.
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Liu Ruiyi, Li Chunrong, Liang Tian, Yin Jie, Zeng Qiang, Zhao Shi, Cao Wangnan, Sun Shengzhi
Аннотация
OBJECTIVE: To evaluate how the risk of unexpected newborn complications among term births varied by time of birth for 12.4 million full-term singleton births in the United States.
STUDY DESIGN: A population-based nationwide study. Exposures included time of birth, divided into four shifts and 42 distributed 4-h intervals. Logistic regression estimated the variations in the risk of unexpected newborn complications.
RESULT: The risk of unexpected newborn complications was higher during night shifts (OR 1.13, 95% CI: 1.12-1.14) and on weekends than on day shifts and weekdays. The risk of seizures and a 5-min Apgar score ≤3 increased steadily at the start of day shifts (07:00), while the risks of transfer, assisted ventilation ≥6 h, and neonatal death remained stable during day shifts. All outcomes increased during night shifts, peaking between 23:00 and 06:59.
CONCLUSION: Unexpected newborn complications were more frequent during night shifts and weekends, particularly between 23:00 and 06:59.
STUDY DESIGN: A population-based nationwide study. Exposures included time of birth, divided into four shifts and 42 distributed 4-h intervals. Logistic regression estimated the variations in the risk of unexpected newborn complications.
RESULT: The risk of unexpected newborn complications was higher during night shifts (OR 1.13, 95% CI: 1.12-1.14) and on weekends than on day shifts and weekdays. The risk of seizures and a 5-min Apgar score ≤3 increased steadily at the start of day shifts (07:00), while the risks of transfer, assisted ventilation ≥6 h, and neonatal death remained stable during day shifts. All outcomes increased during night shifts, peaking between 23:00 and 06:59.
CONCLUSION: Unexpected newborn complications were more frequent during night shifts and weekends, particularly between 23:00 and 06:59.