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Table 4 Percentage change in K-SCQ scores associated with 2-fold increases in creatinine-adjusted prenatal BPA levels above or below 3.0 μg/g creatinine

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

  

Below 3.0 μg/g creatinine

At or above 3.0 μg/g creatinine

Subcategory of K-SCQ score

Gender

% change (95% CI)

P-value

% change (95% CI)

P-value

Total

All

−0.1 (−4.8, 4.9)

0.9728

16.9 (2.3, 33.5)*

0.0214

Boys

1.3 (−5.2, 8.2)

0.7062

10.8 (−6.1, 30.7)

0.2248

Girls

−1.7 (−8.8, 6.0)

0.6624

29.4 (0.2, 67.1)*

0.0483

Social interaction

All

−1.6 (−11.6, 9.6)

0.7707

11.4 (−17.5, 50.4)

0.4817

Boys

−6.4 (−18.2, 7.1)

0.3341

15.8 (−18.5, 64.7)

0.4127

Girls

13.2 (−5.7, 35.8)

0.1842

−3.4 (−51.6, 92.5)

0.9210

Social communication

All

−1.3 (−9.5, 7.6)

0.7638

24.4 (−1.0, 56.4)#

0.0610

Boys

7.0 (−5.6, 21.3)

0.2886

4.7 (−22.4, 41.3)

0.7644

Girls

−9.0 (−20.0, 3.5)

0.1516

58.4 (6.5, 135.8)*

0.0233

Behavior patterns

All

2.2 (−7.3, 12.7)

0.6554

20.2 (−7.4, 55.9)

0.1667

Boys

3.7 (−8.9, 18.1)

0.5796

16.3 (−15.0, 59.2)

0.3443

Girls

−0.9 (−15.1, 15.7)

0.9080

29.3 (−24.5, 121.6)

0.3488

  1. Models were adjusted for gender (boy or girl), parity (1st vs. other), mother’s education (high school or lower vs. more than high school), birth weight (kg), and use of plastic dishes in the microwave oven (yes or no). In addition, prenatal and postnatal BPA levels were mutually controlled for in the model
  2. Abbreviations: K-SCQ Korean version of the Social Communication Questionnaire, BPA bisphenol A, CI confidence interval
  3. * P-value <0.05; # P-value <0.1