Table 3.

Adjusted associations of the maternal serum perfluoroalkyl substance mixture with BMC $z$-scores at age 12 y estimated using quantile g-computation, overall and by child sex ($n=206$): The Health Outcomes and Measures of the Environment (HOME) Study.

Outcome	Overall ($n=206$)	Males ($n=93$)	Females ($n=113$)
Whole-body less head	$-0.04$ ($-0.18$, 0.10)	0.01 ($-0.21$, 0.22)	$-0.04$ ($-0.23$, 0.15)
Total hip	$-0.14$ ($-0.31$, 0.02)	$-0.10$ ($-0.36$, 0.16)	$-0.17$ ($-0.38$, 0.05)
Femoral neck	$-0.02$ ($-0.19$, 0.15)	0.03 ($-0.24$, 0.29)	$-0.02$ ($-0.25$, 0.22)
Forearm	$-0.18$ ($-0.34$, $-0.02$)	$-0.20$ ($-0.46$, 0.07)	$-0.21$ ($-0.44$, 0.02)
Spine	$-0.07$ ($-0.23$, 0.08)	$-0.11$ ($-0.38$, 0.16)	$-0.01$ ($-0.24$, 0.21)

Note: Difference (95% confidence interval) in outcome $z$-score per quartile increase in all perfluoroalkyl substances estimated using quantile g-computation. 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 single stochastic imputation by chained equations. Note: BMC, bone mineral content; BMI, body mass index.