Table 1:
Baseline characteristics: modified intention-to-treat (mITT) Cohort
| HPV 16/18 mITT | HPV 16/18/31/33/45/52/58 mITT | |||||
|---|---|---|---|---|---|---|
| Nonavalent HPV | Bivalent HPV | Meningococcal | Nonavalent HPV | Meningococcal | ||
| Characteristic | Category | |||||
| Total | 496 | 489 | 473 | 325 | 290 | |
| Age group (years) | 15-17 | 299 (60.3%) | 278 (56.9%) | 278 (58.8%) | 197 (60.6%) | 168 (57.9%) |
| 18-20 | 197 (39.7%) | 211 (43.1%) | 195 (41.2%) | 128 (39.4%) | 122 (42.1%) | |
| Marital status | Never married | 478 (96.4%) | 462 (94.5%) | 446 (94.3%) | 315 (96.9%) | 269 (92.8%) |
| Married | 14 (2.8%) | 24 (4.9%) | 20 (4.2%) | 7 (2.2%) | 15 (5.2%) | |
| Previously Married | 3 (0.6%) | 3 (0.6%) | 7 (1.5%) | 2 (0.6%) | 6 (2.1%) | |
| Other | 1 (0.2%) | 0 (0.0%) | 0 (0.0%) | 1 (0.3%) | 0 (0.0%) | |
| Education (highest level) | No schooling | 1 (0.2%) | 2 (0.4%) | 1 (0.2%) | 1 (0.3%) | 1 (0.3%) |
| Primary school, some or complete | 40 (8.1%) | 30 (6.1%) | 36 (7.6%) | 27 (8.3%) | 27 (9.3%) | |
| Secondary school, some or complete | 359 (72.4%) | 368 (75.3%) | 355 (75.1%) | 241 (74.2%) | 220 (75.9%) | |
| Post-secondary school | 96 (19.4%) | 89 (18.2%) | 81 (17.1%) | 56 (17.2%) | 42 (14.5%) | |
| Earns an income of her own | No | 437 (88.1%) | 417 (85.3%) | 417 (88.2%) | 284 (87.4%) | 248 (85.5%) |
| Yes | 59 (11.9%) | 72 (14.7%) | 56 (11.8%) | 41 (12.6%) | 42 (14.5%) | |
| Has a current main or steady sexual partner | No | 144 (29.0%) | 152 (31.1%) | 145 (30.7%) | 98 (30.2%) | 95 (32.8%) |
| Yes | 352 (71.0%) | 337 (68.9%) | 328 (69.3%) | 227 (69.8%) | 195 (67.2%) | |
| Age when first had vaginal intercourse (years) | <15 | 123 (24.8%) | 116 (23.7%) | 103 (21.8%) | 80 (24.6%) | 65 (22.4%) |
| 15-17 | 265 (53.4%) | 274 (56.0%) | 282 (59.6%) | 185 (56.9%) | 173 (59.7%) | |
| >18 | 96 (19.4%) | 93 (19.0%) | 79 (16.7%) | 54 (16.6%) | 46 (15.9%) | |
| Don't remember | 12 (2.4%) | 6 (1.2%) | 9 (1.9%) | 6 (1.8%) | 6 (2.1%) | |
| Lifetime number of sex partners | 1 | 322 (64.9%) | 332 (67.9%) | 289 (61.1%) | 217 (66.8%) | 184 (63.4%) |
| 2 | 121 (24.4%) | 100 (20.4%) | 113 (23.9%) | 78 (24.0%) | 65 (22.4%) | |
| >3 | 53 (10.7%) | 57 (11.7%) | 71 (15.0%) | 30 (9.2%) | 41 (14.1%) | |
| Condom use with last vaginal sex | No | 153 (30.8%) | 155 (31.7%) | 140 (29.6%) | 98 (30.2%) | 78 (26.9%) |
| Yes | 237 (47.8%) | 235 (48.1%) | 238 (50.3%) | 156 (48.0%) | 144 (49.7%) | |
| No sex in past year | 106 (21.4%) | 99 (20.2%) | 95 (20.1%) | 71 (21.8%) | 68 (23.4%) | |
The baseline characteristics of the intention-to-treat population are shown in Table S1.