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| Category | Subcategory | Full cohort (N = 729) | Study sample (N = 56) | p-value |
| Maternal ages (yrs)(mean±SD) | 25.1±4.9 | 25.4±4.6 | 0.65 | |
| Baby's sex (%) | Male | 48.3 | 42.9 | 0.40 |
| Female | 51.7 | 57.1 | ||
| Ethnicity (%) | Dominican | 63.5* | 46.4 | <0.01 |
| African American | 36.5 | 53.6 | ||
| Median total PAH (ng/m3) | 2.3 | 2.3 | 0.83 | |
| Probable asthmatic up to 5 years (%) | 27.2 | 26.8 | 0.95 |
Note: *Among N = 606 samples with available data.
