Table 3.

Association between BMI and urinary bisphenol A.

	KoNEHS Cycle 2		KoNEHS Cycle 3		Pooled data*		PSM data*
	β (95% CI)	P value	β (95% CI)	P value	β (95% CI)	P value	β (95% CI)	P value
Total
Ln Cr-BPA	0.07 (0.01–0.13)	0.028	0.11 (-0.01–0.23)	0.057	0.07 (0.01–0.13)	0.028	0.04 (-0.03–0.11)	0.221
Ln CAS-BPA	0.22 (0.10–0.34)	< 0.001	0.24 (0.13–0.36)	< 0.001	0.21 (0.15–0.27)	< 0.001	0.19 (0.12–0.26)	< 0.001
Male
Ln Cr-BPA	-0.03 (-0.18–0.11)	0.651	0.05 (-0.12–0.21)	0.571	-0.02 (-0.11–0.06)	0.620	-0.02 (-0.11–0.08)	0.694
Ln CAS-BPA	0.10 (-0.05–0.25)	0.170	0.18 (0.02–0.34)	0.024	0.11 (0.03–0.20)	0.009	0.12 (0.03–0.21)	0.026
Female
Ln Cr-BPA	0.19 (0.05–0.33)	0.007	0.17 (0.02–0.33)	0.027	0.15 (0.07–0.23)	< 0.001	0.12 (0.02–0.21)	0.021
Ln CAS-BPA	0.35 (0.21–0.49)	< 0.001	0.29 (0.14–0.44)	< 0.001	0.29 (0.21–0.37)	< 0.001	0.27 (0.17–0.36)	< 0.001

Analysis according to the quartiles of CAS-BPA.

Adjusted for age, sex, household income, smoking, alcohol consumption, and physical activity.

CI, confidence intervals; PSM, propensity score matching; BMI, body mass index; CAS-BPA, CAS-applied urinary BPA.

*Unweighted results.