Table 2.

Multivariate linear regression results for the Depression, Anxiety, and Stress Scale-21 (depression subscale) with sociodemographic covariates.

Covariates		Coefficient (95% CI)	P value
Age group (years) (reference: 18-39)
	40-59	–0.12 (–1.29 to 1.05)	.84
	≥60	–5.86 (–10.52 to –1.20)	.01
Marital status (reference: single)
	Married	–1.02 (–2.00 to –0.03)	.04
	Divorced/widowed	0.41 (–1.90 to 2.73)	.73
Education level (reference: elementary/secondary)
	High school	–2.74 (–6.41 to 0.94)	.14
	University/college	–2.65 (–6.19 to 0.89)	.14
	Postgraduate	–2.39 (–6.05 to 1.26)	.20
Occupation (reference: employed)
	Work from home	1.33 (0.24 to 2.43)	.02
	Student	1.76 (0.19 to 3.32)	.03
	Unemployed	3.34 (1.68 to 5.01)	<.001
	Other	2.11 (–0.15 to 4.37)	.07
Chronic disease (reference: no)
	Yes	1.32 (0.02 to 2.63)	.047
Current situation (reference: social distancing)
	Quarantine/isolation	0.62 (–0.91 to 2.15)	.43
Average income per month (million VND a) (reference: no income)
	<1	0.16 (–2.46 to 2.78)	.90
	1-5	–0.54 (–2.09 to 1.00)	.49
	5-10	–0.15 (–1.64 to 1.35)	.84
	10-20	–0.79 (–2.40 to 0.82)	.34
	>20	–0.08 (–1.85 to 1.70)	.93
Average length of stay (hours) at home during the lockdown (reference: 0-10)
	11-20	–0.65 (–1.94 to 0.64)	.33
	21-24	–0.38 (–1.8 to 1.05)	.60
Current health status (reference: good/very good)
	Average	5.85 (4.49 to 7.21)	<.001
	Bad/very bad	9.57 (4.54 to 14.59)	<.001
Infected cases in province/city (reference: no)
	Yes	1.69 (0.83 to 2.55)	<.001

^aVND: Vietnam Dong.