Interpregnancy Interval and Birth Outcomes: A Propensity Matching Study in the California Population.

ABSTRACT:

Introduction

Previous studies that used traditional multivariable and sibling matched analyses to investigate interpregnancy interval (IPI) and birth outcomes have reached mixed conclusions about a minimum recommended IPI, raising concerns about confounding. Our objective was to isolate the contribution of interpregnancy interval to the risk for adverse birth outcomes using propensity score matching.

Methods

For this retrospective cohort study, data were drawn from a California Department of Health Care Access and Information database with linked vital records and hospital discharge records (2007-2012). We compared short IPIs of < 6, 6-11, and 12-17 months to a referent IPI of 18-23 months using 1:1 exact propensity score matching on 13 maternal sociodemographic and clinical

SUBMITTER: Congdon JL 

PROVIDER: S-EPMC9023393 | biostudies-literature | 2022 May

REPOSITORIES: biostudies-literature