Table 1.

The distribution of gender, age, community, caretaker and cities of positive CBCL (n = 3769).

Variable	Sample	Rate (%)	χ2	p Value	Cramer’s V
Gender **
Boys	2164	21.78	91.27	0.003	0.068
Girls	1605	16.42
Age *
6–7	356	14.23	51.98	0.026	0.051
8–10	898	20.16
11–13	1123	18.73
14–16	1392	20.60
Community
Rural	2204	19.42	1.56	0.213	0.009
Urban	1565	18.71
Caregiver **
Parents	1362	11.00	1419.04	0.001	0.268
Left-behind	2407	32.83
Cities *
Chengdu	801	16.95	32.47	0.014	0.041
Neijiang	924	18.36
Dazhou	959	19.82
Bazhong	1085	21.22

* p < 0.05, ** p < 0.01.