Table 4.

Factors associated with HPV vaccination among children aged 9–17 years in 5 US states

Characteristics	Girls
	HPV vaccine initiation	HPV vaccine completion
	Adjusted OR (95% CI)	Adjusted OR (95% CI)
Child’s characteristics:
Age (vs. 13–17 years)
9–12 years	0.09 (0.06, 0.14) ‡	0.13 (0.06, 0.31) ‡
Seasonal flu shot in the past 12 months (vs. Yes)
No	0.44 (0.31, 0.64) ‡	0.75 (0.39, 1.44)
Parent’s characteristics:
Female sex	1.26 (0.82, 1.93)	1.43 (0.62, 3.31)
Age (vs. >=35 years)
18–34 years	1.13 (0.65, 1.99)	0.57 (0.24, 1.36)
Race-ethnicity (vs. white)
Non-white	1.09 (0.68, 1.75)	0.54 (0.24, 1.23)
Marital status (vs. married/unmarried couple)
Single/divorced/widowed/separated	1.51 (0.96, 2.37)	.43 (0.71, 2.87)
Educational level (vs. college graduate)
High School or less	0.89 (0.55, 1.45)	2.18 (0.94, 5.05)
Some college	0.91 (0.54, 1.54)	1.37 (0.59, 3.20)
Employment status (vs. employed)
Unemployed	1.34 (0.84, 2.15)	1.40 (0.63, 3.11)
Annual household income (vs. >$50,000)
<$15,000	0.55 (0.23, 1.29)	1.17 (0.33, 4.17)
$15,000– $50,000	0.80 (0.47, 1.38)	0.96 (0.41, 2.22)
Any kind health care coverage
No	0.90 (0.46, 1.74)	2.35 (0.78, 7.12)
Could not see a doctor because of cost in the past 12 months (vs. No)
Yes	2.26 (1.28, 4.00) †	0.62 (0.24, 1.58)
Length of time since last routine checkup (vs. within one year)
Within the past 2–5 years	0.51 (0.33, 0.80) †	0.43 (0.21, 0.88) *
5 or more years ago/never	0.61 (0.35, 1.08)	0.37 (0.14, 0.98) *
Individual’s county of residence (vs. urban county)
Rural county	0.80 (0.53, 1.21)	1.00 (0.50, 1.97)

^*P<0.05,

^†P<0.01,

^‡P<0.0001 (multivariate logistic regression model).