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Number of HPV doses by age of HPV vaccine initiation among 5,269 HPV vaccinated females within NIS-teen 2013
| Demographic | N (%) | % receiving vaccine after the age of 12^ | Age adjusted RR (95%CI)^* |
|---|---|---|---|
| Number of HPV doses | |||
| 3 | 3,466 (71.2%) | 26.1% | REF |
| 2 | 786 (16.2%) | 43.8% | 1.91 (1.75–2.09)^ |
| 1 | 276 (12.7%) | 45.6% | 1.88 (1.71–2.06)^ |
| p-trend | <0.001 |
Survey weighted
3 vs. 2/1 doses: RR=1.90 (95%CI=1.76–2.04)
