Table 1.
Characteristics and Exposures of Study Participants with Available Maternal BPA Concentration and FEV1 or Wheeze Data
| FEV1 (N=208) | Wheeze (N=360) | |
|---|---|---|
| Child sex | ||
| Female | 116 (55.8%) | 198 (55%) |
| Male | 92 (44.2%) | 162 (45%) |
| Maternal race | ||
| Black | 61 (29.3%) | 104 (28.9%) |
| White | 134 (64.4%) | 234 (65%) |
| Other | 13 (6.3%) | 22 (6.1%) |
| Maternal education | ||
| ≤ High School | 41 (19.7%) | 78 (21.7%) |
| > High School | 167 (80.3%) | 282 (78.3%) |
| Maternal marital status | ||
| Married, living apart | 1 (0.5%) | 3 (0.8%) |
| Married, living together | 143 (68.8%) | 240 (66.7%) |
| Not married, but living with someone | 20 (9.6%) | 46 (12.8%) |
| Not married, living alone | 44 (21.2%) | 71 (19.7%) |
| Household income | ||
| ≤$25,000) | 53 (25.7%) | 89 (25.1%) |
| $25,000–$50,000 | 35 (17%) | 75 (21.2%) |
| $50,000–$80,000 | 63 (30.6%) | 90 (25.4%) |
| >$80,000 | 55 (26.7%) | 100 (28.2%) |
| History of maternal allergy | ||
| No | 118 (56.7%) | 206 (57.2%) |
| Yes | 90 (43.3%) | 154 (42.8%) |
| Child insurance status | ||
| Private | 151 (74%) | 247 (73.3%) |
| Public | 53 (26%) | 90 (26.7%) |
| Log 10 mean cotinine from 16 and 26 weeks | ||
| Mean (SD), μg/L | −1.3 (1.12) | −1.2 (1.23) |
| Median, μg/L | −1.6 | −1.6 |
| Range, μg/L | (−3.3–2.5) | (−3.3–2.6) |
| Log 10 mean BPA from 16 and 26 weeks | ||
| Mean (SD), μg/g of creatinine | 0.4 (0.35) | 0.4 (0.32) |
| Median, μg/g of creatinine | 0.3 | 0.3 |
| Range, μg/g of creatinine | (−0.3–2.5) | (−0.3–2.5) |
| Gestational age (weeks) | ||
| Mean (SD) | 39.1 (1.59) | 39.0 (1.69) |
| Median | 39.4 | 39.3 |
| Range | (32.7–42.1) | (30.4–42.1) |