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首页> 外文期刊>American Journal of Obstetrics and Gynecology >The association between obstetrical interventions and late preterm birth
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The association between obstetrical interventions and late preterm birth

机译：产科干预措施与早产的关系

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There is concern that obstetric interventions (prelabor cesarean section and induced delivery) are drivers of late preterm (LP) birth. Our objective was to evaluate the independent association between obstetric interventions and LP birth and explore associated independent maternal and fetal risk factors for LP birth. STUDY DESIGN: In this population-based cross-sectional study, the BORN Information System was used to identify all infants born between 34 and 40 completed weeks of gestation between 2005 and 2012 in Ontario, Canada. The association between obstetric interventions (preterm cesarean section and induced delivery) and LP birth (34 to 36 completed weeks' gestation vs 37 to 40 completed weeks' gestation) was assessed using generalized estimating equation regression, RESULTS: Of 917,013 births between 34 and 40 weeks, 49,157 were LP (5.4%). In the adjusted analysis, "any obstetric intervention" (risk ratio [RR], 0.65; 95% confidence interval [CI], 0.57-0.74), induction (RR, 0.71; 95% CI, 0.61-0.82) and prelabor cesarean section (RR, 0.66; 95% CI, 0.59-0.74) were ail associated with a lower likelihood of LP vs term birth. Several independent potentially modifiable risk factors for LP birth were identified including previous cesarean section (RR, 1.28; 95% CI, 1.16-1.40), smoking during pregnancy (RR, 1.28; 95% CI, 1.21-1.36) and high material (RR, 1.1; 95% CI, 1.03-1.18) and social (RR, 1.09; 95% CI, 1.02-1.16) deprivation indices.
机译：人们担心产科干预措施（产前剖宫产和引产）是早产早产的驱动因素。我们的目标是评估产科干预措施与LP出生之间的独立关联，并探索与LP出生相关的独立母婴风险因素。研究设计：在这项基于人群的横断面研究中，使用了BORN信息系统来识别加拿大安大略省2005年至2012年之间完成妊娠34至40周的所有婴儿。使用广义估计方程回归法评估了产科干预措施（早产剖宫产和引产）与LP出生（34至36个完整星期的妊娠与37至40个完整星期的妊娠）的关系，结果：34,40岁至917,013名出生周，LP占49,157（5.4％）。在调整后的分析中，“任何产科干预”（风险比[RR]为0.65; 95％置信区间[CI]为0.57-0.74），引产（RR为0.71; 95％CI为0.61-0.82）和产前剖宫产（RR，0.66; 95％CI，0.59-0.74）与LP足月出生的可能性较低相关。确定了LP出生的几个独立的潜在可改变的危险因素，包括先前的剖宫产（RR，1.28; 95％CI，1.16-1.40），怀孕期间吸烟（RR，1.28; 95％CI，1.21-1.36）和高物质（RR ，1.1; 95％CI，1.03-1.18）和社交（RR，1.09; 95％CI，1.02-1.16）。

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