Donated-embryo pregnancies are associated with increased risk of hypertensive disorders even for young recipients: a retrospective matched-cohort study.

Objective: To determine whether pregnancies with donated embryos are at a higher risk of complications than the pregnancies from autologous frozen-thawed embryo transfer (FET).

Design: Anonymous, multicenter, comparative, observational, retrospective, matched-cohort study.

Setting: Six French assisted reproductive technique centers from 2003 to 2018.