Table 2.
Timely HPV vaccination uptake pre- and post-intervention period*
| Pre-intervention | Post-intervention | ||||||
|---|---|---|---|---|---|---|---|
| Overall | HPV vaccine dose one uptake | HPV vaccine dose one uptake | Risk difference | P-value | |||
| N (%) | n | % (95% CI) | n | % (95% CI) | % | ||
| Overall | 13,290 (100.0) | 6343 | 87.9 (87.1–88.7) | 6947 | 89.0 (88.3–89.7) | 1.1 | 0.05 |
| Intervention sites | |||||||
| Local Authority One | 8236 (62.0) | 3878 | 85.0 (83.8–86.1) | 4358 | 87.3 (86.3–88.3) | +2.3 | <0.01 |
| Local Authority Two | 5054 (38.0) | 2465 | 92.5 (91.5–93.6) | 2589 | 91.8 (90.8–92.9) | −0.7 | 0.34 |
| School category | |||||||
| Comprehensive, non-fee-paying | 11,945 (89.9) | 5677 | 88.9 (88.1–89.8) | 6268 | 89.7 (88.9–90.4) | +0.8 | 0.17 |
| Private, fee-paying | 1042 (7.8) | 476 | 80.5 (79.7–85.9) | 556 | 84.5 (81.5–87.4) | +4.0 | 0.09 |
| Alternative education providers | 303 (2.3) | 190 | 76.8 (70.8–82.8) | 113 | 73.5 (65.3–81.6) | −3.4 | 0.51 |
| Ethnic group | |||||||
| White British | 9085 (68.4) | 4319 | 92.3 (91.5–93.1) | 4766 | 93.2 (92.5–94.0) | +1.0 | 0.08 |
| Black/Black British | 28 (0.2) | 12 | 58.3 (30.4–86.2) | 16 | 75.0 (53.7–96.2) | 16.7 | 0.35 |
| Asian/British Asian | 646 (4.9) | 302 | 89.1 (85.6–92.6) | 344 | 90.1 (87.0–93.3) | +1.0 | 0.66 |
| Mixed background | 24 (0.2) | 8 | 62.5 (29.0–96.0) | 16 | 62.5 (38.8–86.2) | 0.0 | 1.00 |
| Other ethnic group | 355 (2.7) | 168 | 85.1 (79.7–90.5) | 187 | 80.7 (75.1–86.4) | −4.4 | 0.28 |
| Unknown | 3152 (23.7) | 1534 | 76.0 (73.9–78.1) | 1618 | 77.6 (75.5–79.6) | +1.6 | 0.30 |
| Deprivation quintile | |||||||
| Least Deprived | 2646 (19.9) | 1298 | 91.4 (89.8–92.9) | 1348 | 91.6 (90.1–93.1) | −0.2 | 0.82 |
| 2 | 2632 (19.8) | 1253 | 91.7 (90.2–93.2) | 1379 | 92.6 (91.2–94.0) | +0.9 | 0.39 |
| 3 | 3666 (20.1) | 1263 | 89.8 (88.1–91.5) | 1403 | 90.7 (89.2–92.3) | 0.9 | 0.41 |
| 4 | 2660 (20.0) | 1264 | 84.0 (82.0–86.0) | 1396 | 86.2 (84.4–88.0) | +2.2 | 0.12 |
| Most deprived | 2686 (20.2) | 1264 | 82.6 (80.5–84.7) | 1421 | 84.0 (82.1–85.9) | +1.4 | 0.33 |
*Pre-intervention period, 2015–2016 to 2016–2017; Post-intervention period, 2017–2018 to 2018–2019; HPV, human papillomavirus; CI, confidence intervals.