Association between preterm birth subtypes and severe maternal morbidity: a retrospective cohort study.

ABSTRACT:

Background

Severe maternal morbidity (SMM) is a significant complication associated with preterm delivery. However, most studies have focused solely on SMM during the delivery hospitalization, without differentiating by preterm birth subtype or examining postpartum SMM and readmissions.

Objective

To examine the association between preterm birth subtypes and SMM during delivery hospitalization, up to 1-year postpartum, and postpartum readmissions within 365 days.

Study design

We conducted a retrospective cohort study using linked birth and fetal death certificates and maternal hospital discharge data from Michigan, Oregon, and South Carolina (2008-2020). Modified Poisson regression models were used to estimate adjusted relative risks (aRR) and 95% confidence intervals

SUBMITTER: Rufai T 

PROVIDER: S-EPMC12642368 | biostudies-literature | 2025 Nov

REPOSITORIES: biostudies-literature