Evidence Hub

Proton Pump Inhibitors and Preeclampsia Risk Among 157 720 Women: A Swedish Population Register–Based Cohort Study

R. Hastie, L. Bergman, C. Cluver, A. Wikman, N. Hannan, S. Walker, A. Wikström, S. Tong et al.

HYPERTENSION, 2019

720 participants · 21 citations

Abstract

Preeclampsia is a hypertensive disorder of pregnancy with a high rate of maternal and neonatal morbidity and mortality. The only definite treatment is delivery. Preclinical investigations have identified proton pump inhibitors (PPIs), which are commonly used to treat reflux during pregnancy, as a potential treatment for preeclampsia. The aim of this study was to determine the association between PPI use during pregnancy and preeclampsia risk in a population-based register cohort. Using the Swedish Pregnancy Register, we conducted a cohort study of nulliparous pregnant women delivering from January 2013 to July 2017. Associations between PPI use and preeclampsia were investigated using logistic regression analyses with risk estimates presented as crude and adjusted odds ratios (aOR) with 95% CI. Of 157 720 nulliparous pregnant women, 6051 (3.8%) reported PPI use during pregnancy. PPI use during any point of pregnancy was associated with an increased risk of overall preeclampsia (aOR of 1.17; 95% CI, 1.04–1.32) and preeclampsia at term (aOR of 1.20; 95% CI, 1.04–1.39). However, PPI use recorded after 28 gestational weeks was associated with a reduced risk of preterm (delivery <37 weeks) preeclampsia (aOR of 0.63; 95% CI, 0.41–0.96) and early (delivery <34 weeks) preeclampsia (aOR of 0.41; 95% CI, 0.20–0.82). These findings highlight the heterogeneity of this disease, with a potential role PPIs for preventing preterm preeclampsia when used in close proximity to disease onset.…

How strong is the evidence?

Evidence Hub reads this as a cohort study, done in people. Its evidence level is 3 of 5 (Moderate · trial / cohort / secondary analysis). Trials without a large randomized design, cohorts and secondary analyses give moderate evidence. Reported size: 720 participants or records.

How the five levels of evidence work. The level is assigned automatically from the abstract and can be wrong, so check the paper.

Read the paper

Related studies

Go deeper in Evidence Hub

Evidence Hub adds a study data sheet (design, sample size, evidence level, key numbers), an AI summary and a chat grounded in the paper's text.

Open this study Sign up free