Prevalence and risk of pre-eclampsia and gestational hypertension in twin pregnancies: a population-based register study.

ABSTRACT:

Objectives

The aim of this study was to assess the prevalence and risk of pre-eclampsia and gestational hypertension in twin pregnancies compared with singleton pregnancies.

Design

Population-based cohort study.

Setting

Medical Birth Registry of Norway and Statistics Norway.

Participants

929 963 deliveries with 16 174 twin pregnancies in 1999-2014.

Methods

Pre-eclampsia prevalences in twin and singleton pregnancies were described in percentages. Multivariable regression analyses were performed to assess the risks of pre-eclampsia and gestational hypertension in twin pregnancies compared with those in singleton pregnancies, adjusted for previously known risk factors.

Primary and secondary outcome measures

Prevalence and risk of pre-eclampsia and ge

SUBMITTER: Laine K 

PROVIDER: S-EPMC6615795 | biostudies-literature | 2019 Jul

REPOSITORIES: biostudies-literature