Table 3. Multivariate Logistic regression analysis

Variable	Preventive knowledge				Behaviors
	Unadjusted OR	p-value	Adjusted OR	p-value	Unadjusted OR	p-value	Adjusted OR	p-value
Gender
Female	1.65 (1.232-21)	0.001	1.56 (1.162-12)	0.003	1.90 (1.342-69)	<0.001	1.53 (1.042-26)	0.028
Male	1		1		1		1
Age groups
≥65 years	5.55 (1.5120-35)	0.010	4.79 (1.2318-57)	0.023	1,58 (0.485-19)	0.451	//	//
≥65 years	1		1		1
Occupation
Civil servant	1.27 (0.941-71)	0.112	//	//	1.91 (1.352-70)	<0.001	1.70 (1.172-47)	0.005
Others	1				1		1
Monthly income
≥ 10 million VND	0.70 (0.520-95)	0.022	0.69 (0.50-94)	0.021	0.84 (0.591-19)	0.335	//	//
<10 million VND	1		1		1
Hometown
HCMC	1.54 (1.082-20)	0.016	//	//	4.38 (2.467-78)	<0.001	3.27 (1.726-20)	<0.001
Other provinces	1				1		1
Living status
With family, friends	1.62 (1.202-18)	0.001	//	//	3.89 (2.635-74)	<0.0001	2.87 (1.904-34)	<0.001
Alone	1				1		1
Current morbidities
Risky	1.50 (1.112-02)	0.007	1.50 (1.081-98)	0.010	1.81 (1.282-55)	0.001	1.75 (1.202-55)	0.003
No risky	1						1
History of isolation
Isolated	5.53 (2.7511-10)	<0.001	5.36 (2.6710-73)	<0.001	8.35 (4.3715-96)	<0.001	7.82 (4.1514-73)	<0.001
n-isolated	1		1		1		1

// Unidentified