Table 1.
Baseline characteristics of the study population, overall and by 1st trimester bisphenol-A (BPA) urinary concentration
| Characteristics | Total | BPA<1.3 μg/L a |
BPA>=1.3 μg/L |
|---|---|---|---|
| N | 347 | 182 | 165 |
| Maternal age, mean (sd) | 32 (6) | 33 (5) | 31 (6) |
| Body Mass Index, mean (sd) | 25.9 (5.6) | 25.3 (5.5) | 26.5 (5.7) |
| Secondary or higher education, n (%) | 141 (42) | 85 (48) | 56 (35) |
| Race/ethnicity, n (%) | |||
| Non-Hispanic white | 205 (59) | 120 (66) | 85 (52) |
| Non-Hispanic black | 54 (16) | 22 (12) | 32 (19) |
| Asians | 19 (5) | 15 (8) | 4 (2) |
| Hispanic | 50 (14) | 15 (8) | 35 (21) |
| Other | 19 (5) | 10 (5) | 9 (5) |
| Alcohol, n(%) | 19 (5) | 11 (6) | 8 (5) |
| Smoking, n (%) | 8 (2) | 5 (3) | 3 (2) |
a
Geometric mean of BPA in the overall sample