Table 2.
Vaccine intentions and reasons for vaccination decision among unvaccinated vaccinated teens 13–17 y old, by sex – National Immunization Survey-Teen, United States, 2013.
| Overall |
Girls |
Boys |
|||||
|---|---|---|---|---|---|---|---|
| n | % (95% CI) | n | % (95% CI) | n | % (95% CI) | p-value | |
| Intention to vaccinate teen for HPV in the next 12 months* | 9489 | 3447 | 6042 | ||||
| Very/Somewhat likely | 3739 | 40.1 (38.3–41.9) | 1410 | 41.4 (38.5–44.4) | 2329 | 39.3 (37.1–41.5) | 0.26 |
| Not too likely/Not likely at all | 4995 | 50.8 (49.0–52.6) | 1822 | 50.5 (47.5–53.5) | 3173 | 51.0 (48.7–53.2) | 0.81 |
| Unsure/Don't know |
755 |
9.1 (8.1–10.2) |
215 |
8.1 (6.5–10.1) |
540 |
9.8 (8.5–11.1) |
0.14 |
| Most important factor determining when teen will receive HPV shots** | 3739 | 1410 | 2329 | ||||
| Clinician recommendation | 1432 | 36.8 (34.0–39.6) | 443 | 30.5 (26.1–35.3) | 989 | 40.8 (37.2–44.4) | <0.005 |
| Other factor | 370 | 10.7 (8.9–12.8) | 157 | 10.7 (8.3–13.8) | 213 | 10.7 (8.3–13.6) | 0.97 |
| Already scheduled appointment | 388 | 10.2 (8.5–12.3) | 162 | 11.3 (8.9–14.2) | 226 | 9.6 (7.3–12.5) | 0.38 |
| About to become sexually active | 295 | 7.6 (6.3–9.2) | 121 | 9.1 (6.9–11.8) | 174 | 6.7 (5.2–8.6) | 0.12 |
| When I know enough about HPV |
270 |
7.4 (6.1–9.0) |
112 |
9.3 (6.8–12.5) |
158 |
6.2 (4.8–8.0) |
0.06 |
| Main reasons for not vaccinating teen† | 5743 | 2034 | 3709 | ||||
| Clinician did not recommend | 1119 | 19.2 (17.6–20.8) | 258 | 13.0 (10.8–15.5) | 861 | 22.8 (20.6–25.0) | <0.005 |
| Not needed or necessary | 953 | 16.8 (15.2–18.4) | 332 | 14.8 (12.5–17.3) | 621 | 17.9 (15.9–20.1) | 0.05 |
| Lack of knowledge | 839 | 15.5 (14.0–17.2) | 273 | 15.6 (13.0–18.5) | 566 | 15.5 (13.7–17.6) | 0.99 |
| Safety concern/side effects | 548 | 9.6 (8.4–11.0) | 300 | 14.2 (11.9–16.9) | 248 | 6.9 (5.6–8.5) | <0.005 |
| Not sexually active |
541 |
9.0 (7.9–10.4) |
232 |
11.3 (9.2–13.9) |
309 |
7.7 (6.4–9.2) |
0.01 |
| Age at which vaccination planned†† | 4695 | 1793 | 2902 | ||||
| ≤1 year from age at interview | 348 | 7.9 (6.7–9.2) | 100 | 5.9 (4.4–7.8) | 248 | 9.2 (7.5–11.1) | 0.01 |
| 2–3 y from age at interview | 465 | 10.1 (8.6–11.8) | 202 | 11.3 (8.9–14.4) | 263 | 9.2 (7.4–11.4) | 0.22 |
| 4+ years from age at interview | 97 | 1.9 (1.3–2.7) | 49 | 2.0 (1.3–2.9) | 48 | 1.8 (1.1–3.1) | 0.82 |
| Don't know | 1353 | 28.3 (26.1–30.5) | 434 | 23.8 (20.7–27.2) | 919 | 31.2 (28.4–34.1) | <0.005 |
| Never | 1534 | 33.5 (31.2–35.9) | 607 | 33.8 (30.1–37.7) | 927 | 33.4 (30.5–36.4) | 0.85 |
| Teen's decision in the future | 898 | 18.4 (16.6–20.4) | 401 | 23.2 (19.9–26.9) | 497 | 15.3 (13.3–17.4) | <0.005 |
CI = confidence interval. HPV = human papillomavirus.
Analysis restricted to unvaccinated (zero-dose) teens. Excludes 600 respondents who did not answer the question.
Restricted to respondents answering “very/somewhat likely” to vaccination intention question. Only the top 5 reported reasons are presented.
Restricted to those answering “not too likely/not likely at all” or “unsure/don't know” to intention question. Only the top 5 reported reasons are presented.
Restricted to those answering “not too likely/not likely at all” to intention question. Not asked of respondents answering “clinician did not recommend” as their main reason for nonvaccination.