Table 2. Urine Bisphenol-A (BPA) Level in Relation to Overweight among School-age Children.

Age	BPA level	Weight >90th		Crude OR	Adjusted OR*
	µg/L	No	Yes	(95% CI)	(95% CI)
Among Girls
All	<2	310 (82.45%)	66 (17.55%)	Reference	Reference
	≥2	220 (78.85%)	59 (21.15%)	1.26	1.29
				(0.85–1.86)	(0.83–2.01)
9–12	<2	114 (78.62%)	31 (21.38%)	Reference	Reference
	≥2	62 (63.92%)	35 (36.08%)	2.08	2.32
				(1.17–3.68)	(1.15–4.65)
>12	<2	196 (84.85%)	35 (15.15%)	Reference	Reference
	≥2	158 (86.81%)	24 (13.19%)	0.85	0.90
				(0.49–1.49)	(0.48–1.72)
Among Boys
All	<2	281 (75.54%)	91 (24.46%)	Reference	Reference
	≥2	229 (76.59%)	70 (23.41%)	0.94	0.82
				(0.66–1.35)	(0.55–1.23)
9–12	<2	84 (71.19%)	34 (28.81%)	Reference	Reference
	≥2	83 (72.81%)	31 (27.19%)	0.92	0.71
				(0.52–1.64)	(0.34–1.45)
>12	<2	197 (77.56%)	57 (22.44%)	Reference	Reference
	≥2	146 (78.92%)	39 (21.08%)	0.92	0.87
				(0.58–1.46)	(0.52–1.45)

^* Odds ratio adjusted for those factors listed in Table 1 (age, gender, school, residence, paternal and maternal education and overweight, playing video games, unbalanced diet, eating junk food, vegetables or fruit, depression scores and sports/activities).