Association between time of delivery and composite adverse outcomes in pregnancies complicated by hypertensive disorders.

INTRODUCTION

A potential manner to lower the morbidity with the hypertensive disoreders of pregancy is to explore the time of day of delivery.

OBJECTIVE

To compare composite neonatal adverse outcomes among term women with hypertensive disorders.

METHODS

This population-based cohort study used the U.S. vital statistics dataset from 2013 to 2017. Time of delivery was categorized into three shifts. The primary outcome was composite neonatal adverse outcome..

RESULTS

Compared to neonates delivered at the first shift, the risk of composite neonatal adverse outcome was higher at the third shift (aRR = 1.19, 95% CI = 1.13-1.25).

CONCLUSION

the risk of composite neonatal adverse outcome is higher if the delivery occurs at the third (23:00-7:00) shift.