TABLE 3.

Multivariable logistic regression analysis of persons 18-64 years who reported received Tdap vaccination, by healthcare personnel status, demographic and access-to-care variables, United States, NHIS 2011

		Healthcare personnel		Non healthcare personnel
Characteristic		Prevalence Ratio (PR) (adjusted) (95% CI)	p-Value*	Prevalence Ratio (PR) (adjusted) (95% CI)	p-Value*
Age
	18-49	1.6 (1.3-2.1)	<0.001	1.6 (1.4-1.8)	<0.001
	50-64	Referent		Referent
Sex
	Male	Referent		Referent
	Female	1.0 (0.8-1.3)	0.955	1.1 (1.0-1.2)	0.321
Race/ethnicity
	Non-hispanic White	Referent		Referent
	Non-hispanic Black	1.0 (0.7-1.3)	0.926	0.9 (0.7-1.0)	0.105
	Hispanic	1.1 (0.8-1.5)	0.462	0.6 (0.5-0.8)	<0.001
	Asian	1.0 (0.7-1.5)	0.970	1.0 (0.7-1.3)	0.785
	Other	1.0 (0.6-1.8)	0.944	1.5 (1.1-2.0)	0.025
Marital Status
	Married	Referent		Referent
	Widowed/divorced/separated	0.7 (0.5-0.9)	0.009	0.9 (0.7-1.1)	0.189
	Never married	1.0 (0.8-1.2)	0.992	1.2 (1.0-1.3)	0.015
Education
	High school or less	Referent		Referent
	Some college or college graduate	1.7 (1.2-2.3)	0.002	1.2 (1.1-1.4)	0.005
	Above college graduate	2.0 (1.4-2.8)	<0.001	1.4 (1.1-1.7)	0.001
Poverty level
	At or above poverty	1.1 (0.8-1.6)	0.503	1.0 (0.8-1.2)	0.793
	Below poverty	Referent		Referent
Region
	Northeast	Referent		Referent
	Midwest	1.0 (0.7-1.3)	0.941	1.2 (0.9-1.4)	0.160
	South	1.1 (0.9-1.5)	0.370	1.1 (0.9-1.3)	0.423
	West	1.6 (1.2-2.2)	0.004	1.5 (1.2-1.8)	<0.001
US Born
	Yes	1.2 (0.9-1.7)	0.186	1.5 (1.2-1.8)	<0.001
	No	Referent		Referent
Living with an infant aged<1 year
	Yes	0.9 (0.5-1.6)	0.605	1.5 (1.2-1.9)	0.001
	No	Referent		Referent
Physician contacts within past year
	None	Referent		Referent
	1	1.2 (0.8-1.7)	0.465	1.2 (1.0-1.5)	0.091
	2-3	1.3 (0.9-1.9)	0.096	1.4 (1.1-1.7)	0.002
	4-9	1.3 (0.9-1.8)	0.210	1.6 (1.3-2.0)	<0.001
	≥10	1.2 (0.8-1.8)	0.344	1.6 (1.3-2.1)	<0.001
Hospitalization within past year
	Yes	1.5 (1.0-2.0)	0.045	1.1 (0.9-1.4)	0.392
	No	Referent		Referent
Usual place for health care
	Clinic or health center	1.8 (1.2-2.8)	0.004	1.5 (1.2-1.9)	0.001
	Doctor’s office or HMO†	1.5 (1.0-2.2)	0.062	1.3 (1.0-1.6)	0.040
	Some other place	1.7 (0.9-3.4)	0.121	1.4 (1.0-2.0)	0.051
	None	Referent		Referent
Health insurance
	Yes	1.1 (0.8-1.6)	0.509	1.1 (0.9-1.3)	0.192
	No	Referent		Referent
Influenza vaccination, past year
	Yes	2.0 (1.6-2.4)	<0.001	2.0 (1.8-2.2)	<0.001
	No	Referent		Referent

^*p<0.05 by t test for comparisons within each variable with the indicated reference level.

^†Health maintenance organization.