Skip to main content

Table 1 Characteristics of participants’ mothers (N = 304)

From: Prenatal and postnatal bisphenol A exposure and social impairment in 4-year-old children

Variables Mean ± SD, N (%) P-value
Overall Boys (n = 160) Girls (n = 144)
Maternal information
 Mother’s age (years) 31.2 ± 3.6 31.4 ± 3.7 31.0 ± 3.4 0.3873
 Gestational age (weeks) 39.2 ± 1.2 39.2 ± 1.2 39.2 ± 1.2 0.9349
 Smoking during pregnancy 7 (2.4) 4 (2.6) 3 (2.2) 1.0000
 Drinking alcohol during pregnancy 28 (9.7) 21 (13.6) 7 (5.2) 0.0172
 Mother’s education     0.4490
   > High school 252 (82.9) 130 (81.3) 122 (84.7)  
   ≤ High school 52 (17.1) 30 (18.8) 22 (15.3)  
 Parity     <.0001
  First child 177 (58.2) 102 (63.8) 75 (52.1)  
  Second + 127 (41.8) 58 (36.3) 69 (47.9)  
 Depression score (0–60) 11.4 ± 7.9 11.2 ± 8.1 11.5 ± 7.6 0.8108
 Creatinine (μg/L) 87.9 ± 50.3 88.0 ± 49.2 87.7 ± 51.7 0.9531
 Creatinine-adjusted prenatal BPA (μg/g creatinine) 2.0 ± 2.1 2.3 ± 2.3 1.6 ± 1.7 0.0088
  1. Abbreviations: SD standard deviation, BPA bisphenol A