Table 4.
Association between BPA levels and immune function measured by CMV antibody levels, NHANES 2003–2004.
| Model 1 |
Model 2 |
|||
|---|---|---|---|---|
| Independent variable | < 18 years of age (n = 335) | ≥ 18 years of age (n = 452) | < 18 years of age (n = 335) | ≥ 18 years of age (n = 452) |
| Ln(BPA) (ng/mL) | −0.104 (0.053) | 0.186 (0.034)*** | −0.113 (0.047)* | 0.158 (0.035)*** |
| Age (years) | −0.011 (0.013) | 0.017 (0.004)*** | −0.012 (0.012) | 0.018 (0.004)*** |
| Male | −0.151 (0.117) | −0.250 (0.078)** | −0.154 (0.109) | −0.239 (0.078)** |
| BMI (kg/m2) | 0.004 (0.008) | 0.001 (0.006) | ||
| Creatinine (mg/dL) | 0.001 (0.001)* | −0.001 (0.001) | 0.001 (0.001)* | −0.001 (0.001) |
| Race | ||||
| Non-Hispanic black | 0.179 (0.086) | 0.158 (0.082) | 0.145 (0.103) | 0.095 (0.093) |
| Mexican American | 0.105 (0.084) | 0.128 (0.108) | 0.090 (0.097) | −0.006 (0.115) |
| Other race/ethnic groups | 0.288 (0.150) | −0.111 (0.141) | 0.294 (0.154) | −0.211 (0.168) |
| Family income quartile | ||||
| 2 | −0.275 (0.134) | −0.055 (0.101) | ||
| 3 | −0.275 (0.164) | −0.166 (0.099) | ||
| 4 | −0.107 (0.138) | −0.305 (0.132)* | ||
| Head of household education | ||||
| Completed high school | 0.070 (0.148) | −0.136 (0.108) | ||
| > High school | −0.015 (0.105) | −0.136 (0.154) | ||
Data are β-coefficients (SEs) for each independent variable in the regression models. Models are OLS regressions with CMV antibody level as the dependent variable. The model is estimated among respondents with detected levels of BPA. Model 1 includes age, sex, creatinine, and race as covariates; model 2 includes all of these plus BMI, family income, and educational attainment.
*
p < 0.05.
**
p < 0.01.
***
p < 0.001.