Table 2. Univariate and Multivariate Multinomial Logistic Regression Analysis of the Association Between HPV Knowledge and Intentions to Vaccinate Daughters, Health Information National Trends Survey (HINTS) 2007-2009 (n = 1037).

	Unadjusted						Adjusted
Intentions to Vaccinate Daughter a	Not Sure/Depends			Yes			Not Sure/Depends			Yes
	uRRR	pv	95% CI	uRRR	pv	95% CI	aRRR	pv	95% CI	aRRR	pv	95% CI
HPV Knowledge (No - Ref.)
Yes	1.03	0.938	0.50, 2.12	3.25	0.004	1.47, 7.20	1.07	0.867	0.49, 2.30	3.96	0.004	1.57, 10.00
Sex (Male - Ref.)
Female	0.72	0.295	1.47, 7.20	0.58	0.07	0.32, 1.05	0.63	0.135	0.35, 1.16	0.52	0.021	0.30, 0.90
Age (18-27 - Ref.)
28-37	1.26	0.58	0.55, 2.88	0.89	0.759	0.41, 1.91	1.15	0.802	0.38, 3.47	1.25	0.658	0.46, 3.36
38-47	1.27	0.328	0.78, 2.08	0.86	0.494	0.55, 1.34	1.21	0.549	0.65, 2.25	1.03	0.919	0.58, 1.83
≥48	1.07	0.666	0.78, 1.48	0.90	0.461	0.68, 1.19	1.00	0.992	0.65, 1.54	0.98	0.918	0.67, 1.44
Race/Ethnicity (White - Ref.)
African American	0.87	0.692	0.43, 1.76	0.75	0.412	0.36, 1.52	1.00	0.99	0.46, 2.19	0.76	0.506	0.34, 1.72
Hispanic	0.90	0.619	0.58, 1.39	1.12	0.621	0.72, 1.74	1.01	0.961	0.60, 1.71	1.02	0.931	0.61, 1.70
Other	0.76	0.02	0.60, 0.96	0.71	0.029	0.52, 0.96	0.76	0.041	0.58, 0.99	0.74	0.06	0.54, 1.01
Marital Status (Not Married - Ref.)
Married	1.20	0.608	0.59, 2.41	0.67	0.248	0.33, 1.34	0.87	0.79	0.31, 2.45	0.63	0.325	0.25, 1.60
Formerly Married	1.18	0.506	0.72, 1.95	0.76	0.239	0.47, 1.21	1.05	0.866	0.58, 1.91	0.72	0.261	0.40, 1.29
Level of Education (Less than High School - Ref.)
High School Graduate	0.95	0.936	0.30, 3.04	0.91	0.868	0.28, 2.94	1.01	0.993	0.26, 3.87	1.06	0.923	0.33, 3.36
Some College	1.18	0.549	0.68, 2.07	0.87	0.627	0.49, 1.54	1.18	0.605	0.63, 2.19	0.93	0.786	0.54, 1.60
Bachelors Degree	1.12	0.583	0.74, 1.71	0.86	0.349	0.61, 1.19	1.09	0.746	0.65, 1.80	0.85	0.392	0.59, 1.23
Post Baccalaureate	1.07	0.655	0.79, 1.44	0.92	0.499	0.71, 1.18	1.01	0.954	0.70, 1.45	0.90	0.469	0.67, 1.20
Household Income (≤$19,999 - Ref.)
US$20,000 to US$34,999	1.02	0.965	0.34, 3.09	0.98	0.97	0.39, 2.46	0.95	0.926	0.30, 3.01	1.17	0.736	0.46, 3.01
US$35,000 to US$49,999	0.80	0.286	0.52, 1.22	0.98	0.93	0.67, 1.44	0.76	0.217	0.50, 1.18	1.03	0.851	0.72, 1.48
US$50,000 to US$74,999	0.94	0.65	0.71, 1.24	0.81	0.111	0.63, 1.05	0.86	0.375	0.61, 1.21	0.76	0.067	0.57, 1.02
US$75,000 to US$99,999	1.01	0.891	0.84, 1.21	0.85	0.07	0.72, 1.01	0.94	0.596	0.75, 1.18	0.87	0.241	0.68, 1.10
≥US$100,000	1.10	0.164	0.96, 1.27	1.11	0.089	0.98, 1.25	1.03	0.691	0.87, 1.23	1.11	0.147	0.96, 1.29
Employment (Unemployed - Ref.)
Employed	1.04	0.879	0.62, 1.75	0.94	0.795	0.58, 1.52	0.91	0.764	0.48, 1.72	0.91	0.742	0.52, 1.59
Health Insurance (Not Insured - Ref.)
Insured	2.05	0.052	0.99, 4.21	0.98	0.948	0.48, 2.00	2.06	0.141	0.78, 5.42	1.49	0.413	0.57, 3.91

Note. HPV = human papillomavirus; Ref(1). Referent group; uRRR = Unadjusted relative risk ratio; aRRR = Adjusted relative risk ratio; pv – p-value.

^aNo intention is the base outcome.