Quantitative meta-analysis of maternal prenatal salivary cortisol and newborn birthweight does not identify effect of fetal sex.

Affiliation

Department of Community Health Sciences, University of Calgary, 3820 Hospital Drive N.W., Calgary, AB, T2N 4Z6, Canada; Alberta Children's Hospital Research Institute for Child and Maternal Health, Heritage Medical Research Building, 3330 Hospital Drive N.W., Calgary, AB, T2N 4N1, Canada; O'Brien Institute for Public Health, University of Calgary, 3820 Hospital Drive N.W., Calgary, AB, T2N 4Z6, Canada. Electronic address: [Email]

Abstract

Heightened concentration of maternal cortisol is a frequently proposed mechanism linking adverse maternal environments with poor birth outcomes, including birth weight. It is commonly hypothesized that prenatal exposures have sexually dimorphic effects on fetal development, however few studies have assessed the effects of fetal sex on the relationship between maternal cortisol and birth outcomes.

Keywords

Birth weight,Cortisol,Fetal sex,Growth strategies,Pregnancy,