Table 1.

Demographics of all adolescent participants

Variables	All adolescents (n=70)	Adolescents with NSSI (n=44)
Sex
Male	20 (28.6%)	9 (20.5%)
Female	50 (71.4%)	35 (79.5%)
Age (year)	16.1±2.4	17.0±2.7
12	1 (1.4%)	0 (0%)
13‒15	30 (42.9%)	22 (50.0%)
16‒18	31 (44.3%)	17 (38.6%)
19‒20	5 (7.1%)	4 (9.1%)
21‒25	3 (4.3%)	1 (2.3%)
Education
Primary school	2 (2.9%)	1 (2.3%)
Junior middle school	27 (38.6%)	16 (36.6%)
Senior middle school	33 (47.1%)	18 (40.9%)
College/university	8 (11.4%)	7 (20.2%)
Marital status of parents
Divorced	12 (17.1%)	8 (18.2%)
Married	58 (82.9%)	36 (81.8%)
Family members/siblings
No siblings	36 (51.4%)	24 (54.5%)
Have siblings	34 (48.6%)	20 (45.5%)
Religious belief
No	60 (85.7%)	40 (90.9%)
Yes	10 (14.3%)	4 (9.1%)

Data are expressed as number (percentage) of adolescents or mean±standard deviation. NSSI: non-suicidal self-injury.