Table 2.

Pearson's correlations between scale scores on the parent‐report SDQ and child BMI z score at age 3.5‐4 years (N = 194)

SDQ scale (Cronbach's α)	Mean ± SD	Emotional symptoms	Conduct problems	Peer problems	Prosocial behavior	BMI z score
Hyperactivity (0.75)	4.30 ± 1.38	0.17*	0.41**	−0.04	−0.28**	−0.061
Emotional symptoms (0.56)	1.37 ± 1.40		0.30**	0.12	−0.06	−0.04
Conduct problems (0.56)	2.21 ± 1.59			0.23**	−0.36**	0.06
Peer problems (0.50)	1.49 ± 1.48				−0.31**	0.21**
Prosocial behavior (0.67)	7.77 ± 1.71					−0.15*

Range 0‐10, with higher scores indicating more problems/strengths; BMI z score based on measured weight and height and converted to gender‐ and age‐adjusted BMI z score using WHO Anthro 26.*P < 0.05, **P < 0.01.

SDQ, Strengths and Difficulties Questionnaire.