Table 3.

Factors associated with influenza vaccination status in multiple logistic regression analysis (n=3567)

		Multiple
Variable	Vaccinated (%)	aOR (95% CI)	p Value
Sociodemographics
Age (years)
65–69	70.3	1.0 (referent)
70–74	78.8	1.79 (1.48 to 2.17)	<0.001
≥75	79.3	2.06 (1.68 to 2.52)	<0.001
High education*	77.9	1.27 (1.03 to 1.57)	0.025
High household income†	76.9	1.13 (0.96 to 1.33)	0.143
Living alone‡	74.6	0.82 (0.68 to 1.00)	0.045
Health behavioural risks
Current smoking	69.3	0.78 (0.62 to 0.98)	0.03
Frequent drinking§	73.5	0.86 (0.72 to 1.04)	0.124
Physical activity level
Never	74.5	1.0 (referent)
More than once per week	79.5	1.29 (1.05 to 1.59)	0.017
Health status and accessibility
Self-reported health status
Unhealthy	78.1	1.0 (referent)
Fair	74.5	0.85 (0.68 to 1.06)	0.144
Healthy	73.4	0.79 (0.64 to 0.97)	0.025
History of health screening¶	81.9	2.26 (1.92 to 2.66)	<0.001
Limitation in daily activities	78.0	1.18 (0.99 to 1.41)	0.072

*‘High education’ refers to those who studied in an elementary school.

†‘High household income’ refers to an income of more than 1 million won per month.

‡‘Living alone’ refers to an individual who is single, divorced or separated.

aOR, adjusted OR; VAS, visual analogue scale. §Frequent drinking is defined by drinking more than once per week. ¶Health screening refers to national healthcare services conducted within 2 years.