Adjusted associations of maternal serum perfluoroalkyl substances concentrations with BMC z-scores at 12 years of age: The Health Outcomes and Measures of the Environment (HOME) Study. (A) overall (), (B) males (), (C) females (). Difference (95% confidence interval) in BMC z-score per unit increase in perfluoroalkyl substance concentrations estimated in separate linear regression models adjusted for maternal age at delivery, midpregnancy BMI, race/ethnicity, household income, parity, prenatal vitamin use, average blood lead concentration, and child age at follow-up. Models for the overall population are additionally adjusted for child sex and child sex by child age at follow-up. Missing covariate information accounted for using full-information maximum likelihood. Numeric results are reported in Tables S3 and S4. Note: BMC, bone mineral content; BMI, body mass index; PFHxS, perfluorohexane sulfonic acid; PFNA, perfluorononanoic acid; PFOA, perfluorooctanoic acid; PFOS, perfluorooctane sulfonic acid.