Table 2.

Socio-demographic characteristics of STC sub-study participants by SDQ score, continuous variables

	SDQ ≥ 14 N = 119 Mean value (SD)	SDQ < 14 N = 29 Mean value (SD)
Child’s age, years	6.9 (0.6)	7.1 (0.7)
Mother’s age, years	33.4 (6.3)	33.4 (6.7)
Mother’s education, years	5.8 (3.0)	6.6 (3.2)
Father’s education, years	7.2 (3.5)	7.2 (3.1)
Number of people in household	8.1 (3.3)	6.9 (2.5)
Number of children of mother	5.1 (2.5)	5.6 (2.8)
Number of rooms in household	2.4 (1.3)	2.1 (1.0)
Months in kindergarten	16.3 (8.3)	17.9 (10.9)
Months in primary school	9.5 (6.1)	9.5 (6.1)
Height for age z-score	− 1.0 (1.1)	− 1.3 (0.9)