Table 2 Population characteristics
From: Effects of phthalate exposure on asthma may be mediated through alterations in DNA methylation
Category | Subjects with urine and blood specimens | Initial cohort with urine specimens | P value |
|---|---|---|---|
( N = 256) | ( N = 453) | ||
Gender (male) (%) | 53.5 | 57.7 | 0.31 |
Prematurity <37 week (%) | 92.1 | 91.0 | 0.66 |
Maternal age ≥34 years (%) | 17.3 | 17.8 | 0.89 |
Maternal history of atopy (%Yes) | 42.6 | 35.1 | 0.10 |
Maternal education ≥ college (%) | 40.3 | 30.8 | 0.03* |
Breast feeding (%Yes) | 79.8 | 76.4 | 0.39 |
ETS exposure (%Yes) | 40.3 | 46.2 | 0.10 |
Family income per year >1,500,000 (NT dollars) (%) | 8.7 | 8.0 | 0.33 |
Asthma (%Yes) | 25.4 | 26.9 | 0.89 |