Table 3.

Logistic regression of rationales for delaying HPV vaccination uptake, National Immunization Survey–Teen, 2011 U.S.

	No recommendation		Safety concerns		No need		Lack of knowledge
OR	95% CI	OR	95% CI	OR	95% CI	OR	95% CI
Male	2.57***	2.20–3.01	0.28***	0.24–0.31	1.22***	1.10–1.34	1.08	0.94–1.25
Racea
Hispanic	1.14	0.91–1.38	1.14	0.91–1.35	0.99	0.85–1.15	1.39**	1.11–1.72
m	1.11	0.85–1.31	0.77*	0.65–0.92	1.20*	1.03–1.39	1.49***	1.19–1.85
Other	1.41**	1.13–1.73	0.72**	0.56–0.92	1.00	0.85–1.18	1.43**	1.13–1.80
Age	1.01	0.98–1.07	1.02	0.97–1.07	1.02	0.98–1.05	1.03	0.98–1.08
Household incomeb
Greater than or equal to 75 k	1.01	0.79–1.29	1.30	0.99–1.70	1.07	0.88–1.29	0.94	0.71–1.22
Greater than poverty, less than 75 k	0.87	0.70–1.09	1.33*	1.03–1.70	1.16	0.95–1.31	0.96	0.74–1.22
Mother's educationc
Less than high school	0.99	0.82–1.46	0.96	0.68–1.35	1.06	0.84–1.34	1.29	0.97–1.79
High school only	1.00	0.83–1.19	1.07	0.89–1.29	1.13	0.99–1.28	1.17	0.96–1.42
Some college	0.85*	0.73–0.99	1.06	0.91–1.23	1.01	0.91–1.12	1.10	0.94–1.29
Mother respondent	0.68***	0.59–0.78	1.74***	1.45–2.08	0.75***	0.67–0.83	1.21*	1.02–1.44
Number of children in household	0.96	0.89–1.06	1.06	0.96–1.18	1.08*	1.00–1.63	0.93	0.83–1.04
Married	0.99	0.83–1.15	0.91	0.78–1.07	1.18**	1.05–1.34	1.07	0.90–1.28
Mother's age (years)d
35–44	1.25	0.91–1.472	0.98	0.75–1.29	0.98	0.81–1.18	1.14	0.84–1.56
≥ 45	1.35	0.97–1.86	0.91	0.69–1.20	0.97	0.80–1.19	0.96	0.70–1.33
Insurance status
Medicaid	1.14	0.84–1.54	1.25	0.93–1.67	0.97	0.78–1.21	0.97	0.71–1.33
No insurance	0.85	0.67–1.09	0.89	0.70–1.14	1.10	0.94–1.31	1.09	0.85–1.39
Census regione
South	0.78**	0.66–0.93	0.93	0.78–1.00	1.11	0.97–1.25	0.94	0.78–1.14
Midwest	1.04	0.59–0.87	0.83	0.69–1.00	1.08	0.94–1.25	0.85	0.68–1.04
West	0.73**	0.60–0.88	0.75**	0.62–0.91	1.31***	1.14–1.51	0.79*	0.64–0.98
Constant	0.08***		0.12***		0.19***		0.06***
N = 9,964

	Not sexually active		Teen's age		Other reason		Teen is male
OR	95% CI	OR	95% CI	OR	95% CI	OR	95% CI
Male	0.68***	0.61–0.75	0.64***	0.54–0.77	0.54***	0.47–0.63	–	–
Racea
Hispanic	0.72**	0.59–0.88	1.23	0.92–1.65	0.81	0.62–1.05	0.81	0.62–1.06
Black	0.83	0.68–1.00	0.62*	0.42–0.91	0.84	0.65–1.10	0.83	0.64–1.09
Other	0.81*	0.66–0.98	0.95	0.68–1.31	1.12	0.88–1.45	0.75	0.56–1.01
Age	0.94**	0.91–0.98	0.56***	0.52–0.61	1.14***	1.09–1.21	1.05*	1.01–1.11
Household incomeb
≥ 75 k	0.86	0.69–1.07	1.23	0.84–1.82	0.62**	0.46–0.82	1.32	0.96–1.83
Greater than poverty, less than 75 k	0.92	0.75–1.13	0.97	0.67–1.40	0.84	0.65–1.09	1.11	0.83–1.51
Mother's Educationc
Less than high school	0.78	0.58–1.04	1.31	0.84–2.05	0.93	0.65–1.33	0.74	0.48–1.14
High school only	0.73***	0.62–0.86	0.91	0.69–1.20	0.97	0.79–1.19	0.72**	0.58–0.90
Some college	0.99	0.87–1.11	0.95	0.77–1.18	0.94	0.79–1.12	0.98	0.83–1.17
Mother respondent	1.08	0.95–1.23	1.25	0.99–1.57	1.19	0.99–1.44	1.50***	1.24–1.81
Number of children in household	1.01	0.93–1.11	0.93	0.79–1.08	0.91	0.81–1.03	1.05	0.93–1.18
Married	1.04	0.90–1.20	1.13	0.87–1.47	1.11	0.91–1.35	0.70***	0.58–0.85
Mother's age (years)d
35–44	0.87	0.68–1.11	1.00	0.68–1.48	0.90	0.65–1.24	0.68*	0.50–0.94
> = to 45	1.08	0.84–1.40	1.10	0.74–1.64	0.74	0.53–1.04	0.68*	0.49–0.94
Insurance status
Medicaid	0.99	0.79–1.29	0.92	0.57–1.49	1.06	0.76–1.48	0.98	0.67–1.41
No insurance	0.95	0.78–1.17	1.09	0.75–1.54	1.33*	1.04–1.70	0.97	0.74–1.29
Census regione
South	1.05	0.91–1.23	0.77*	0.60–0.98	1.10	0.88–1.36	1.15	0.94–1.41
Midwest	0.96	0.81–1.14	0.91	0.70–1.19	1.09	0.86–1.37	0.93	0.74–1.17
West	1.13	0.95–1.32	0.70*	0.53–0.92	1.12	0.89–1.42	0.84	0.67–1.06
Constant	0.76		5.62***		0.03***		0.09***
N = 9,964							N = 6,726

Note. OR = odds ratio. Omitted categories: ^aWhite (non-Hispanic), ^bpoverty or less, ^ccollege degree, ^dless than or equal to 34 yrs, ^eemployer, ^fnortheast. *p < 0.05, **p < 0.01, ***p < 0.001.