Table 2.

The sleep status of participants during the early stage of COVID-19 outbreak

Variables	n	%	Variables	n	%
Bedtime			Subjective Sleep quality
Before 11:00 pm	550	24.8	Very good	527	23.8
11:00 pm-12:00 am	622	28.1	Good	1226	55.3
12:00 am-1:00 am	589	26.6	Bad	411	18.6
After 1:00 am	454	20.5	Very Bad	51	2.3
Sleep latency			Use of sleeping medication
≤ 15 mins	855	38.6	None	2026	91.5
16–30 min	851	38.4	< 1 /per week	90	4.1
31–60 min	284	12.8	1–2 /per week	81	3.7
≥ 60 mins	225	10.2	≥3 / per week	18	0.8
Sleep duration			Daytime dysfunction
< 5 h	58	2.6	None	1108	50.0
5–6 h	187	8.4	< 1 /per week	515	23.3
6–7 h	426	19.2	1–2 /per week	347	15.7
≥ 7 h	1544	69.7	≥3 / per week	245	11.1