Does fetal sex affect pregnancy outcome?

In maternal fetal medicine, gender differences in outcome are often observed.This article reviews the fetal sex-dependent differences found in many aspects of pregnancy, from conception through birth.The MEDLINE, EMBASE, and Current Contents databases were searched, for the years 1985 to 2006, using the following Medical Subject Headings and text words: fetal gender, finale, female, sex ratio at birth, pregnancy outcome, preterm birth, and...