Cognitive impairment and factors influencing depression in adolescents with suicidal and self-injury behaviors: a cross-sectional study

Table 1 Demographic and clinical rating data

Variables	Total (N = 142)	SAs(S) (n = 52, 36.6%)	NSSI(N) (n = 65, 45.8%)	Control group(C) (n = 25, 17.6%)	χ ²	p	Contrast
Age, mean (SD)	14.9 (1.6)	14.9 (1.6)	14.8 (1.7)	15.3 (1.5)	1.782	0.410^a
Gender
Female Male	110 (77.5) 32 (22.5)	46 (88.5) 6 (11.5)	50 (76.9) 15 (23.1)	14 (56.0) 11 (44.0)	10.211	0.006
Education level
≤ 9 years ＞ 9 years	85 (59.9) 57 (40.1)	32 (61.5) 20 (38.5)	40 (61.5) 25 (38.5)	13 (52.0) 12 (48.0)	0.780	0.677
Districts
City Rural	63 (44.4) 79 (55.6)	22 (42.3) 30 (57.7)	30 (46.2) 35 (53.8)	11 (44.0) 14 (56.0)	0.175	0.916
Only-child
Yes No	38 (26.8) 104 (73.2)	14 (26.9) 38 (73.1)	15 (23.1) 50 (76.9)	9 (36.0) 16 (64.0)	1.540	0.463
Single-parent family
No Yes	99 (69.7) 43 (30.3)	35 (67.3) 17 (32.7)	50 (76.9) 15 (23.1)	14 (56.0) 11 (44.0)	3.970	0.137
Left-behind experience
No Yes	102 (71.8) 40 (28.2)	36 (69.2) 16 (30.8)	46 (70.8) 19 (29.2)	20 (80.0) 5 (20.0)	1.034	0.596
PHQ-9, mean (SD)	18.1 (6.2)	20.1 (6.0)	17.9 (5.6)	14.2 (6.3)	10.038	< 0.001 ^a	S＞C^**; S＞N^
BHS, mean (SD)	13.0 (3.0)	13.3 (2.7)	13.4 (2.6)	11.2 (3.9)	6.962	0.031 ^a	N＞C^*
RRS, mean (SD)	65.3 (12.6)	64.6 (13.3)	66.7 (11.3)	63.1 (14.5)	1.511	0.480^a
BPFS-C, mean (SD)	85.2 (15.0)	87.5 (15.9)	82.3 (12.9)	77.9 (15.9)	7.672	0.022 ^a	S＞C^*

Note:^*p＜0.05, ^**p＜0.01, ^***p < 0.001. a: Kruskal-Wallis H Test. Bold indicates p < 0.05
PHQ-9: Patient Health Questionnaire-9; BHS: Beck Hopelessness Scale; RRS: Nolen-Hoeksema Ruminative Responses Scale; BPFS-C: Borderline Personality Features Scale for Children; SAs: Suicidal attempt; NSSI: Non-suicidal self-injury

ISSN: 1471-244X