Table 1.
Study Population Characteristics and Exposures for the Children with BPA levels (n=1625).
| Spirometry Data Available N=661 N (Weighted %) |
Spirometry Data Not Available Weighted N=964 N (Weighted %) |
p-value Comparing Weighted Percentages or Means |
|
|---|---|---|---|
| Male sex | 345 (51.6) | 501 (50.9) | NS |
| Race/ethnicity | |||
| Hispanic-Mexican | 178 (13.4) | 250 (14.6) | |
| Hispanic-Other Hispanic | 93 (6.8) | 123 (9.4) | NS |
| Non-Hispanic White | 197 (64.6) | 293 (60.5) | |
| Non-Hispanic Black | 193 (15.2) | 207 (15.5) | |
| Poverty-income ratio | |||
| 1st quartile (< 0.83) | 140 (16.5) | 250 (15.4) | |
| 2nd quartile (0.83 to 1.59) | 137 (14.5) | 123 (20.0) | 0.04 |
| 3rd quartile (1.60 to 3.09) | 190 (28.5) | 293 (21.0) | |
| 4th quartile (at least 3.1) | 150 (36.5) | 207 (34.7) | |
| Missing | 44 (4.0) | 91 (8.9) | |
| Parent/caregiver education | |||
| Less than 9th grade | 69 (8.7) | 112 (7.9) | |
| 9th–12th grade | 127 (12.5) | 177 (13.5) | NS |
| High school or GED | 146 (20.0) | 226 (21.4) | |
| Some college | 191 (30.5) | 257 (28.7) | |
| College or greater | 102 (24.9) | 164 (25.7) | |
| Missing | 26 (3.4) | 28 (2.8) | |
| Serum cotinine (ng/mL) | |||
| < 0.015 | 101 (14.3) | 200 (21.0) | |
| 0.015–1.9 | 397 (59.2) | 524 (52.6) | 0.01 |
| ≥ 2.0 | 90 (17.3) | 106 (12.1) | |
| Missing | 73 (9.2) | 134 (14.3) | |
| Weight category | |||
| Not overweight | 406 (65.6) | 576 (64.0) | NS |
| Overweight | 96 (13.6) | 173 (17.8) | |
| Obese | 159 (20.8) | 200 (18.2) | |
| Doctor diagnosed asthma | 125 (18.3) | 183 (17.9) | NS |
| Respiratory illness in last week | 131 (20.8) | 25 (2.4) | 0.001 |
| Age (years), mean (SD) | 13.0 (5.4) | 12.4 (7.6) | 0.02 |
| BPA (ng/mL), geometric mean (95% CI) | 2.5 (2.2, 2.8) | 2.0 (1.9, 2.2) | 0.009 |
NS = Not significant (<0.05)