Table 1. Demographic characteristic variables

Variable	Frequent	%
Gender
Male	384	50.20
Female	381	49.80
Age groups
18 - 29 years	358	46.80
30 - 49 years	338	44.18
50 - 64 years	56	7.32
≥65 years	13	1.70
Average age Occupation	32.77 ± 11.22 (18-76)a
Civil servant	295	38.56
Student	134	17.52
Pensioner - Housewife	109	14.25
Business	108	14.12
Freelancer	73	9.54
Unemployed workers	46	6.01
Monthly income
No income	113	14.77
1 - <5 million VND	76	9.93
5 - <10 million VND	216	28.24
10 - 15 million VND	216	28.24
>15 million VND	144	18.82
Average income (million VND)	10,306 ± 9160.31 (0-70,000)a
Hometown
Other provinces	183	23.92
HCMC	582	76.08
Living status
Alone	366	47.84
With family, friends	399	52.16
Current morbidities
No risk	458	59.87
Risk	307	40.13
History of isolation
Isolated	720	94.12
Not yet	45	5.88

Mean ± SD (min- max)