Table 3.

Questionnaire results of total cohort and different subgroups.

	Total sample	PHQ-9 ≥ 5N = 39	PHQ-9 < 5N = 46	P value	GAD-7 ≥ 5N = 33	GAD-7 < 5N = 52	P value	ISI ≥ 8N = 46	ISI < 8N = 39	P value
PHQ-9 score	6.1 ± 5.9	11.2 ± 5.5	1.6 ± 1.5	<0.001	11.1 ± 5.5	2.9 ± 3.8	<0.001	9.3 ± 6.3	2.3 ± 2.6	<0.001
GAD-7 score	4.7 ± 4.6	8.4 ± 4.8	1.5 ± 1.9	<0.001	9.8 ± 4.0	1.4 ± 1.4	<0.001	7.5 ± 5.0	1.4 ± 1.8	<0.001
ISI score	9.1 ± 6.8	13.3 ± 6.3	5.5 ± 4.9	<0.001	14.7 ± 5.5	5.5 ± 4.9	<0.001	14.1 ± 5.0	3.1 ± 2.5	<0.001
Self-perceived illness severity
Less severe (1 score)	50.6%	30.8%	67.4%	0.001	37.0%	66.7%	0.049	24.2%	67.3%	0.001
Normal (2 score)	30.6%	43.6%	19.6%		39.1%	20.5%		42.4%	23.1%
Severe (3 score)	12.9%	12.8%	13.0%		17.4%	7.7%		21.2%	7.7%
Very severe (4 score)	5.9%	12.8%	0.0%		6.5%	5.1%		12.1%	1.9%