Table 2.

Characteristics of recruited participants

Characteristic	Offenders	Controls	p value
Age (years)
Mean (SD)	33.8 (10.3)	33.4 (14.3)	.16
Range	13–72	10–80
Marital status (%)
Unmarried	19.6	14.5	.45
Married	64.9	73.2
Divorced	14.5	12.3
Educational level (%)
Illiterate	1.1	2.3	.12
Elementary education	12.2	17.6
Secondary education	84.5	74.7
Higher education	2.2	5.4
Geographical region (%)
North of Changjiang River	54.6	56.3	.28
South of Changjiang River	45.4	43.7