Table 1.

Distribution of 8,177 students according to the mental health outcomes and sex.

	Total		Males		Females		p-value*
	N = 8,177		N = 4,095		N = 4,082
	N	%	N	%	N	%
Patient health questionnaire (PHQ-9)
<15	7,127	87.2	3,674	89.7	3,453	84.6	<0.001
≥15	1,050	12.8	421	10.3	629	15.4
General anxiety disorder (GAD-7)
<10	6,080	74.4	3,345	81.7	2,735	67.0	<0.001
≥10	2,097	25.6	750	18.3	1,347	33.0
Insomnia severity index (ISI)
<15	7,466	91.3	3,773	92.1	3,693	90.5	0.01
≥15	711	8.7	322	7.9	389	9.5
Barratt impulsiveness scale (BIS-11)
<70	7,307	89.4	3,691	90.1	3,616	88.6	0.02
≥70	870	10.6	404	9.9	466	11.4
Barratt impulsiveness scale: attentional
< I quartile (8–12)	1,229	15.0	670	16.4	559	13.7
I–III quartile (13–17)	4,598	56.2	2,333	57.0	2,265	55.5	<0.001
>III quartile (18–30)	2,350	28.7	1,092	26.7	1,258	30.8
Barratt impulsiveness scale: motor
< I quartile (11–16)	1,777	21.7	798	19.5	979	24.0
I–III quartile (17–20)	3,642	44.5	1,853	45.3	1,789	43.8	<0.001
>III quartile (21–36)	2,758	33.7	1,444	35.3	1,314	32.2
Barratt impulsiveness scale: non-planning
< I quartile (11–19)	1,553	19.0	808	19.7	745	18.3
I–III quartile (20–25)	4,005	49.0	2,015	49.2	1,990	48.8	0.09
>III quartile (26–40)	2,619	32.0	1,272	31.1	1,347	33.0

^*Chi-squared test (p ≤ 0.05 identifies statistically significant differences between males and females).