Postpartum readmission for hypertension and pre-eclampsia: development and validation of a predictive model.

Objective: To develop a model for predicting postpartum readmission for hypertension and pre-eclampsia at delivery discharge and assess external validation or model transportability across clinical sites.

Design: Prediction model using data available in the electronic health record from two clinical sites.

Setting: Two tertiary care health systems from the Southern (2014-2015) and Northeastern USA (2017-2019).