Table 3. Association of urinary BPA concentrations (log transformed, µg BPA/g creatinine) at 7–8 years with wheezing, PC₂₀, and current asthma at 7–8, 9–10, and 11–12 years of age.

	Log BPA (µg/g creatinine) at 7–8 y
	Wheeze*			PC20 †			Current asthma*
Age (years)	No.‡	OR (95%CI)	P value	No.§	ß (SE)	P value	No.‡	OR (95%CI)	P value
7–8	8/120	3.08 (0.86–11.09)	.09	64	−2.01 (1.22)	.11	NA
9–10	11/121	4.24 (1.35–13.28)	.01	19	−6.37 (2.26)	.02	11/125	3.64 (1.23–10.76)	.02
11–12	9/122	1.80 (0.69–4.71)	.23	14	−3.64 (2.50)	.20	9/127	1.87 (0.72–4.86)	.20

*Logistic regression model adjusted for gender, parental asthma history, fetal and environmental tobacco smoke exposure, pet ownership, and grade at enrollment.

^†Linear regression model adjusted for gender, parental asthma history, fetal and environmental tobacco smoke exposure, pet ownership, and grade at enrollment.

^‡Number with outcome/total number for analysis.

^§Total number for analysis.