Proposed Diagnostic Criteria for the DSM-5 of Nonsuicidal Self-Injury in Female Adolescents: Diagnostic and Clinical Correlates

Table 1

Demographic and psychosocial characteristics of adolescents with NSSI disorder (NSSI), compared with non-clinical adolescents (NCA), clinical controls without NSSI (CCA), and adolescents with NSSI without impairment/distress (NSSI-C).

Characteristic	NCA (𝑛=37)	CCA (𝑛=20)	NSSI-C (𝑛=11)	NSSI disorder (𝑛=39)	Welch's 𝐹 (3,33.36)
Mean age (SD) in years	14.60 (1.02)	15.93 (1.52)	17.08 (1.92)	15.94 (1.42)	12.19**𝐹 (3,79)
Mean no. of school years (SD)	8.40 (1.08)	9.25 (1.58)	9.33 (1.41)	9.16 (1.10)	2.88*
Number (percentage) living with parents^a	31 (100)	15 (93.8)^a	11 (100)	26 (83.9)^b	𝜒^2 (9)=10.2
Number (percentage) whose parents have joint custody^c	31 (86.1)	12 (75.0)	7 (70.0)	20 (66.7)	𝜒^2 (9)=8.04

Note. *𝑝<.05, **𝑝<.01. ^aOne was in another child and adolescent psychiatric clinic ^bthree children lived in a supervised residential group, one in a foster family, and one in another child and adolescent psychiatric clinic, ^cthe rest had mothers with sole custody.