. Author manuscript; available in PMC: 2016 May 18.

Published in final edited form as: Obesity (Silver Spring). 2015 Nov 11;24(1):231–237. doi: 10.1002/oby.21258

Table 2.

Adjusted association between maternal serum PFOA concentrations during pregnancy and child adiposity measurements at 8 years of age (n=204)^a

PFAS Tercile	N Overweight or Obese/N Total	Median (Range) of Concentrations (ng/mL)	BMI z-score Difference (95% CI)	Waist Circumference Difference (95% CI)	Body Fat Percent Difference (95% CI)	RR for overweight/ obesity (95% CI)^b
PFOA Tercile 1	13/67	3.3 (0.5–4.2)	Ref	Ref	Ref	Ref
PFOA Tercile 2	21/68	5.3 (4.3–6.4)	0.44 (0.13, 0.74)	4.3 (1.7, 6.9)	3.6 (1.8, 5.5)	1.84 (0.97, 3.50)
PFOA Tercile 3	17/69	9.4 (6.6–25)	−0.01 (−0.33, 0.30)	2.2 (−0.5, 4.9)	1.5 (−0.4, 3.4)	1.54 (0.77, 3.07)

-Adjusted for maternal age, race, education, income, parity, employment, marital status, depressive symptoms, BMI at 16 weeks gestation, fruit/vegetable consumption, fish consumption, prenatal vitamin use, and maternal serum cotinine concentrations. The waist circumference model is also adjusted for child age in months.

-Defined as having a BMI z-score ≥ 1.0364 at 8 years of age.