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. Author manuscript; available in PMC: 2018 Jan 3.
Published in final edited form as: Vaccine. 2016 Nov 23;35(1):164–169. doi: 10.1016/j.vaccine.2016.11.012

Table 5.

Association of Clinician Knowledge, Clinician Barriers, and Perceived Parental Barriers with HPV Initiation and Completion

Vaccine Series Initiation Vaccine Series Completion1
Site-level characteristics Unadjusted Model, IRR (95% CI) Adjusted Model2, IRR (95% CI) Unadjusted Model, IRR (95% CI) Adjusted Model2, IRR (95% CI)
Clinician Knowledge3 1.03 (1.01, 1.05) 1.05 (1.03, 1.07)5 1.24 (1.20, 1.27) 1.28 (1.24, 1.32)5
Clinician Barriers4 1.01 (0.98, 1.03) 0.99 (0.96, 1.02) 0.93 (0.90, 0.97) 0.97 (0.93, 1.01)
Perceived Parental Barriers4 0.93 (0.89, 0.96) 0.94 (0.91, 0.98)5 0.79 (0.75, 0.83) 0.90 (0.86, 0.95)5
1

Completion defined as those 9 to 18 year old residents who received 3 or more doses of HPV vaccine where the second dose occurred at least one month after the first dose and the third dose at least 6 months after the first dose and 3 months after the second dose.

2

Adjusted for percent white, percent female, percent ages 9–13 and percent with government insurance or self-pay at each site.

3

Poisson regression was used to estimate incident rate ratio per unit change in the measure.

4

Poisson regression was used to estimate incident rate ratio per quartile increase in the measure.

5

Represents statistically significant associations that persist after adjustment

Abbreviations: HPV, Human Papillomavirus