Associations between term cesarean delivery in the first pregnancy and second-pregnancy preterm delivery.

ABSTRACT:

Introduction

Cesarean delivery has been shown to increase the risk of preterm delivery in future pregnancies. The association could be a direct result of the procedure, or because the indications that led to the cesarean delivery also increase the risk of preterm delivery in later pregnancies.

Material and methods

298 901 mothers with first and second singleton deliveries from 1999 to 2020 were investigated using data from the Medical Birth Registry of Norway linked with Statistics Norway. The mothers were categorized by mode of cesarean delivery (total, emergency and planned) and vaginal delivery at term in the first pregnancy. We used log-binomial regression models to estimate relative risks with 95% confidence intervals (CI) of iatrogenic and spontaneous preterm delivery

SUBMITTER: Einum A 

PROVIDER: S-EPMC11683550 | biostudies-literature | 2025 Jan

REPOSITORIES: biostudies-literature