Table 2.

Characteristics of mental health status of participants (general public, frontline, and non-frontline) (N = 3,064).

	N	Median (Interquartile range)	X2	P-Value
PHQ-9
General Public	490	4 (1–9)*1**3	91.897	<0.001
Non-frontline	1659	3 (1–7)*1**2
Frontline	915	6 (2–9)**2**3
GAD-7
General Public	490	3 (0–7)**1**3	91.874	<0.001
Non-frontline	1659	2 (0–6)**1**2
Frontline	915	5 (1–8)**2**3
ISI
General Public	490	4 (1–9)*1**3	61.658	<0.001
Non-frontline	1659	3 (1–8)*1**2
Frontline	915	6 (2–11)**2**3
IES-R
General Public	490	17 (7–30)**2	68.534	<0.001
Non-frontline	1659	15 (5–26)**1
Frontline	915	23 (9–36)**1**2

^*P < 0.05;

^**P < 0.01; number 1, 2, and 3 are paired groups which were compared using Dunn-Bonferroni post-hoc tests.