IL10 and preeclampsia: Our sex-specific findings are consistent with observed effect modification by sex in the analysis of PFAS and preeclampsia in MIREC participants.18 We noted particularly compelling effect modification by fetal sex for the association between PFHxS with IL-10, a known anti-inflammatory biomarker (Table S7; http://links.lww.com/EE/A233).54 The mechanisms underlying fetal sex-specific differences in maternal inflammatory profiles are unclear.