Table 1. Descriptors by number of appropriately timed doses.
| Singleton | Doublet | Triplet | ||
| N = 651 | N = 745 | N = 1026 | ||
| Characteristics of Person receiving HPV4 dose | ||||
| Age, yrs | mean (SD) | mean (SD) | mean (SD) | |
| All | 21.3 (3.0) | 20.8 (3.5) | 20.4 (3.8) | |
| 10–17 year | 15.8 (1.6) | 15.2 (1.9) | 14.8 (2.3) | |
| 18–26 years | 22.0 (2.4) | 21.9 (2.5) | 22.0 (2.4) | |
| Race † | n (%) | n (%) | n (%) | |
| White | 223 (35.2) | 243 (32.6) | 423 (41.2) | |
| Black | 359 (56.6) | 381 (51.1) | 525 (51.2) | |
| Hispanic | 52 (8.2) | 83 (11.1) | 27 (2.6) | |
| Gravidity | n = 605 | n = 684 | n = 980 | |
| n = 0 | 494 (81.7) | 537 (78.5) | 564 (55.0) | |
| Parity | n = 605 | n = 684 | n = 980 | |
| n = 0 | 467 (77.2) | 519 (75.9) | 516 (50.3) | |
| Characteristic of the Visit at which HPV4 was initiated | ||||
| HPV4 alone | 324 (49.8) | 464 (62.3) | 713 (69.5) | |
| Health Care visit | 327 (50.2) | 281 (37.7) | 313 (30.5) | |
| Acute Illness | 57 (8.8) | 51 (6.8) | 73 (7.1) | |
| Follow up from acute illness | 8 (1.2) | 15 (2.0) | 42 (4.1) | |
| Preventive visit | 44 (6.8) | 50 (6.7) | 89 (8.7) | |
| Postpartum | 192 (29.5) | 76 (10.2) | 52 (5.0) | |
| Other* | 26 (4.0) | 31 (4.2) | 57 (5.5) | |
| Year Administered | ||||
| 2007 | 72 (11.1) | 101 (12.3) | 222 (21.6) | |
| 2008 | 318 (48.8) | 409 (54.9) | 527 (51.4) | |
| 2009 | 260 (39.9) | 232 (31.1) | 252 (24.6) | |
| 2010 | 1 (0.2) | 3 (0.4) | 24 (2.3) | |
Singleton means only one dose was administered; doublet means that two doses were appropriately timed; triplet means that three doses were appropriately timed.
Bold font signifies significant differences among singleton, doublet and/or triplet doses at p<0.001.
*
Doses administered at visits at which counseling for smoking cessation, depression, or contraceptive use; and procedures including IUD placement occurred.
†
Doses administered to Other races than White, Black and Hispanic make up 4% of singleton and doublet doses and were not included in this table.