Table 1.
Population characteristics of study population in the 2011–2016 continuous NHANES
| Characteristic | BPA (NHANES 2011-2016) | BPS and BPF (NHANES2013-2016) |
|---|---|---|
| Number | 2367 | 1575 |
| Age | 48.91±17.64 | 49.15±17.59 |
| BMI (kg/m2) | 28.80±6.17 | 28.91±6.12 |
| Urinary creatinine [mg/dL, median (IQR)] | 130.00 (80.00-194.00) | 130.50 (81.00-198.00) |
| % Race | ||
| Mexican American | 13.39% | 15.37% |
| Other Hispanic | 10.18% | 10.48% |
| Non-Hispanic White | 37.52% | 38.03% |
| Non-Hispanic Black | 22.48% | 20.89% |
| Other Race | 16.43% | 15.24% |
| % PIR | ||
| ≤1.3 | 31.48% | 31.18% |
| 1.3-3.5 | 36.15% | 36.23% |
| >3.5 | 32.37% | 32.59% |
| % Smoking status | ||
| never | 48.48% | 48.22% |
| former | 34.56% | 35.05% |
| current | 16.96% | 16.73% |
| % Time of venipuncture | ||
| morning | 49.39% | 49.71% |
| afternoon | 35.74% | 35.37% |
| evening | 14.87% | 14.92% |
| % BMI | ||
| Normal (<25kg/m2) | 48.48% | 26.19% |
| Overweight (25–29.9 kg/m2) | 34.56% | 38.96 |
| Obesity (>=30 kg/m2) | 16.96% | 34.85% |
| Six-month time period | ||
| November 1 through April 30 | 48.92% | 49.02% |
| May 1 through October 31 | 51.08% | 50.98% |
Mean +/- SD for continuous variables: P value was calculated by weighted t-test
% for Categorical variables: P value was calculated by weighted chi-square test
BMI Body Mass Index