Table 1

Characteristics of study participants

Characteristics	n	No (%) vaccinated	p Value
Gender
Male	375	59 (15.7)	0.275^*
Female	440	82 (18.6)
Total	815
Ethnicity
White	510	97 (19.0)	0.302^*
Black	65	7 (10.8)
Asian	167	26 (15.6)
Other	49	7 (14.3)
Total	791
US citizen
Yes	758	134 (17.7)	0.323^*
No	56	7 (12.5)
Total	814
Employed
Yes	304	40 (13.2)	0.013^*
No	499	100 (20.0)
Total	803
Parent's highest level of education
Some college education or less	108	5 (4.6)	<0.001^†
College graduate	235	34 (14.5)
Postgraduate education	454	101 (22.3)
Total	797
Higher risk status^‡
Yes	163	43 (26.4)	<0.001^*
No	645	97 (15.0)
Total	808

↵* χ² test.
↵† Two-sided Cochran–Armitage test for trend.
↵‡ Presence of a health condition that increases the risk for medical complication due to influenza or resides with an individual with reduced immunity. Yes indicates a positive response to any risk factor presented in table 2.