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Table 6 Relation between maternal pre-pregnancy BMI groups and child autistic traits scores

From: Is the association between mothers’ autistic traits and childhood autistic traits moderated by maternal pre-pregnancy body mass index?

Maternal pre-pregnancy BMI groups

Mean (SD)

Sig

d

Generation R (N = 4,659)

    

 Underweight (≤ 18.5)

135

5.7 (5.2)

.042

0.3

 Healthy (18.5–24.9)

3401

4.7 (3.7)

 Overweight (25.0–29.9)

879

5.4 (4.6)

.000

0.2

 Obesity (≥ 30.0)

244

5.3 (3.6)

.099

CUSP (N=179)

    

 Underweight (≤ 18.5)

22

33.1 (8.3)

.274

 Healthy (18.5–24.9)

134

29.7 (8.2)

 Overweight (25.0–29.9)

18

27.1 (5.5)

.664

 Obesity (≥ 30.0)

5

36.4 (10.1)

.129

  1. Confounders that were included were maternal age, paternal age, child sex, birthweight, gestational age and Apgar score at 5 min