Table 1.
HPV prevalence in urine samples from Norwegian women by birth cohort.
| 21 yr 1990 (N=1565) |
17 yr 1994 (N=5468) |
17 yr 1996 (N=5894) |
||||
|---|---|---|---|---|---|---|
| HPV | n | % (95% CI) | n | % (95% CI) | n | % (95% CI) |
| Totala | 710 | 45.4 (42.9–47.8) | 1087 | 19.9 (18.8–20.9) | 907 | 15.4 (14.5–16.3) |
| High-risk (HR)b | 466 | 29.8 (27.5–32.0) | 611 | 11.2 (10.3–12.0) | 445 | 7.6 (6.9–8.2) |
| Probably HRc | 129 | 8.2 (6.9–9.6) | 174 | 3.2 (2.7–3.6) | 173 | 2.9 (2.5–3.4) |
| Low-riskd | 455 | 29.1 (26.8–31.3) | 640 | 11.7 (10.9–12.6) | 500 | 8.5 (7.8–9.2) |
| Vaccine typese | 254 | 16.2 (14.4–18.1) | 403 | 7.4 (6.7–8.1) | 283 | 4.8 (4.3–5.3) |
| Multiple infectionf | 408 | 26.1 (23.9–28.2) | 504 | 9.2 (8.5–10.0) | 352 | 6.0 (5.4–6.6) |
Wald's method was used to calculate 95% CIs.
a
HPV total includes those who are positive for at least one of the 37 HPV types tested for and those who are HPV type negative, but positive for HPV using generic primers.
b
HPV types 16, 18, 31, 33, 35, 39, 45, 51, 52, 56, 58, 59.
c
HPV types 26, 53, 66, 68, 73, 82.
d
HPV types 6, 11, 30, 40, 42, 43, 54, 61, 67, 69, 70, 74, 81, 83, 86, 87, 89, 90, 91.
e
HPV types 6, 11, 16, 18.
f
Infection positive for two or more HPV types.