Table 6.
Association Between Urinary BPA Levels and Obesity in Children, by Gender and Race/Ethnicity, National Health and Nutrition Examination Survey, 2003–2008
| Race/Ethnicity Categories | ||||||
|---|---|---|---|---|---|---|
| Non-White |
White |
|||||
| Sample Size | Multivariable Adjusted |
Sample Size | Multivariable Adjusteda |
|||
| OR | 95% CI | OR | 95% CI | |||
| Girls | ||||||
| BPA quartilesb | ||||||
| 1 | 195 | 1.00 | Referent | 70 | 1.00 | Referent |
| 2 | 208 | 1.41 | 0.82, 2.43 | 71 | 2.20 | 0.83, 5.82 |
| 3 | 191 | 1.30 | 0.71, 2.41 | 83 | 1.28 | 0.38, 4.31 |
| 4 | 185 | 1.09 | 0.61, 1.96 | 81 | 1.97 | 0.76, 5.08 |
| Ptrend | 0.9762 | 0.3943 | ||||
| Log BPA | 779 | 0.95 | 0.77, 1.17 | 305 | 1.14 | 0.81, 1.60 |
| Boys | ||||||
| BPA quartilesb | ||||||
| 1 | 204 | 1.00 | Referent | 78 | 1.00 | Referent |
| 2 | 190 | 0.89 | 0.47, 1.67 | 75 | 15.56 | 3.43, 70.57 |
| 3 | 200 | 1.22 | 0.76, 1.96 | 82 | 8.47 | 1.83, 39.10 |
| 4 | 203 | 1.25 | 0.63, 2.47 | 84 | 18.89 | 3.97, 89.89 |
| Ptrend | 0.3440 | <0.0001 | ||||
| Log BPA | 797 | 1.14 | 0.92, 1.41 | 319 | 1.70 | 1.30, 2.21 |
Abbreviations: BPA, urinary bisphenol A; CI, confidence interval; OR, odds ratio.
a Adjusted for age (years); education (below high school, high school, above high school); moderate activity (absent, present); urinary creatinine(mg/dL); and serum cotinine (ng/mL).
b BPA quartiles: quartile 1 (<1.5 ng/mL); quartile 2 (1.5–2.7 ng/mL); quartile 3 (2.8–5.4 ng/mL); quartile 4 (>5.4 ng/mL).