Table 3.

Unadjusted and adjusted odds ratios for HPV vaccine completion. Logistic regression.

Variable	Number	OR	95% CI	aOR	95% CI
Gender
Female	132840	Ref.		Ref.
Male	105231	0.57	0.56–0.58	0.62	0.61–0.63
Vaccine initiation age (years)
Before recommended age (9 & 10)	8866	2.62	2.49–2.75	2.50	2.38–2.64
Recommended age (11 & 12)	131195	Ref.		Ref.
Catch-up age (13+)	98010	0.72	0.71–0.73	0.76	0.74–0.77
Mother’s race
Non-Hispanic White	235851	Ref.		Ref.
American Indian/	2220	1.05	0.97–1.15	1.05	0.95–1.15
Alaska Native
% under poverty
<8%	61444	Ref.		Ref.
9–12%	52936	0.98	0.96–1.00	0.98	0.96–1.00
13–16%	40534	0.99	0.97–1.02	1.01	0.98–1.03
17–21%	39937	1.03	1.00–1.05	1.03	1.00–1.06
≥22%	43220	0.94	0.92–0.96	0.94	0.91–0.96
Number of Vaccines for Children providers in zip code area
0	51236	1.02	0.99–1.04	1.02	0.99–1.04
1	43363	Ref.		Ref.
2–4	99968	1.06	1.03–1.08	1.05	1.02–1.07
≥5	43504	1.07	1.04–1.10	1.07	1.04–1.10
Vaccine clinic facility type
Private	205870	Ref.		Ref.
Health department	26860	0.71	0.69–0.73	0.71	0.69–0.73
School	3649	0.99	0.92–1.05	1.10	1.03–1.18
Tribal	1386	1.04	0.94–1.16	1.06	0.95–1.20
Other	306	0.46	0.37–0.59	0.57	0.45–0.72
Funding Eligibility
Private	135835	Ref.		Ref.
Vaccines for Children -Eligible	5323	0.90	0.88–0.91	0.90	0.88–0.91
Other	96916	1.1	1.09–1.22	1.11	1.05–1.17

^*aOR=adjusted Odds Ratio; CI=Confidence Interval

(Number of vaccine completed: 127945 Vs. number of vaccine uncompleted: 110126)