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

Table 2 Neuropsychological performance measures (Mean ± SD).

Variable		SAs(S) (n = 52, 36.6%)	NSSI(N) (n = 65, 45.8%)	Control group(C) (n = 25, 17.6%)	χ 2/ F	p	Contrast
PS	WAIS-IV Coding	3.72 ± 0.18	3.78 ± 0.21	3.81 ± 0.16	5.962	0.117^a
AT	Stroop	1.02 ± 0.02	1.03 ± 0.02	1.39 ± 0.37	4.791	0.744^a
WM	WAIS-IV Digit	6.94 ± 0.26	7.46 ± 0.24	8.28 ± 0.37	7.274	0.026^a	C＞S^**
ER	FERT	29.72 ± 4.94	29.75 ± 4.27	29.88 ± 5.11	0.010	0.990
EF	WCST CC RE RFP	5.21 ± 0.17 36.44 ± 3.14 27.49 ± 3.63	5.34 ± 0.13 32.34 ± 2.55 41.45 ± 2.91	5.80 ± 0.16 22.00 ± 1.95 46.96 ± 4.33	7.838 8.443 12.506	0.020^a 0.015^a 0.002^a	C＞S^*, C＞N^ S＞C^* N＞S^, C＞S^*

Note: ^*p＜0.05, ^**p＜0.01. a: Kruskal-Wallis H Test
PS: processing speed; AT: attention; WM: working memory; FERT: Facial Emotion Recognition Test; ER: emotion recognition; EF: executive function; WCST: Wisconsin sorting card test; CC: categories; RE: errors; RFP: percent of conceptual responses; SAs: suicide attempts, NSSI: non-suicidal self-injury

ISSN: 1471-244X