Table 1.
Demographics of Female Adolescent HPV Vaccine Initiators and Noninitiators
| Demographic | Total (N = 14588) (n [%]) | Vaccine Initiators (n = 6098) (n [%]) | Vaccine Noninitiators (n = 8490) (n [%]) | P (Vaccine Initiators vs Noninitiators)a |
|---|---|---|---|---|
| Plan type | <.0001 | |||
| Commercial | 13677 (93.76) | 5441 (89.23) | 8236 (97.01) | |
| Medicaid | 911 (6.24) | 657 (10.77) | 254 (2.99) | |
| Geographic region | <.0001 | |||
| Midwest | 3687 (25.27) | 1392 (22.83) | 2295 (27.03) | |
| Northeast | 16 (0.11) | 8 (0.13) | 8 (0.09) | |
| South | 9349 (64.09) | 4083 (66.96) | 5266 (62.03) | |
| West | 1536 (10.53) | 615 (10.09) | 921 (10.85) | |
| Location | <.0001 | |||
| Rural | 633 (4.54) | 182 (2.98) | 481 (5.67) | |
| Suburban | 1852 (12.70) | 640 (10.50) | 1212 (14.28) | |
| Urban | 12071 (82.75) | 5276 (86.52) | 6795 (80.04) | |
| Unknown | 2 (0.01) | 0 (0.00) | 2 (0.02) | |
| ≥1 dose of MenACWY vaccine | <.0001 | |||
| Yes | 11433 (78.37) | 5239 (85.91) | 5449 (64.18) | |
| No | 3155 (21.63) | 859 (14.09) | 3041 (35.82) | |
| ≥1 dose of Tdap vaccine | <.0001 | |||
| Yes | 10688 (73.27) | 5241 (85.95) | 6192 (72.93) | |
| No | 3900 (26.73) | 857 (14.05) | 2298 (27.07) |
Abbreviations: HPV, human papillomavirus; MenACWY, meningococcal ACWY; Tdap, tetanus, diphtheria, and acellular pertussis.
aAccording to the χ2 test for categorical variables.