Risk factors associated with preterm birth after a prior term delivery.

ABSTRACT:

Objective

The objective of this study was to assess the presence of newly acquired preterm birth (PTB) risk factors among primiparous women with no prior history of PTB.

Design

Case-control study.

Setting

Deliveries occurring within a large healthcare system from 2002 to 2012.

Population

Women with their first two consecutive pregnancies carried to ≥20(0/7)  weeks' gestation.

Methods

Those delivering the first pregnancy at term and the second preterm ≥20(0/7) and <37(0/7)  weeks (term-preterm cases) were compared with women with a term birth in their first two pregnancies (term-term controls). Social factors with the potential to change between the first and second pregnancies and intrapartum labour characteristics in the first pregnancy were compared be

SUBMITTER: Wong LF 

PROVIDER: S-EPMC4809794 | biostudies-literature | 2016 Oct

REPOSITORIES: biostudies-literature