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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
  1. *P<0.05.