The roles of negative mood, impulsivity, and executive dysfunction in non-suicidal self-injury behaviors among Chinese middle school students

Table 4 The moderation analysis of impulsivity among boys and girls with NSSI thoughts (N_boy = 110, N_girl = 166)

Gender	Regression equation		Overall fit index			Significance of regression coefficients
Gender		Predictor variable	R	R²	F	β	LLCI	ULCI	t	P
Boy	NSSI behaviors	NSSI thoughts	0.618	0.382	21.866^***	0.960	0.722	1.198	8.003	< 0.001
		Impulsivity				-0.189	-0.462	0.084	-1.375	0.172
		NSSI thoughts × Impulsivity				-0.079	-0.261	0.103	-0.863	0.390
Girl	NSSI behaviors	NSSI thoughts	0.709	0.502	54.490^***	0.626	0.448	0.804	6.938	< 0.001
		Impulsivity				0.391	0.209	0.573	4.236	< 0.001
		NSSI thoughts × Impulsivity				0.562	0.376	0.748	5.964	< 0.001

Notes: ^*p < 0.05, ^**p < 0.01, ^***p < 0.001. LLCI represents the lower level of the confidence interval, and ULCI represents the upper level of the confidence interval

ISSN: 2050-7283