Table 1. The prevalence of type-specific HPV infection in women with normal cytology in the HK and GZ cohorts.
| Hong Kong | Guangzhou | ||||
| HPV type | No. of positive case | Prevalence** (95%CI) | No. of positive case | Prevalence** (95%CI) | P value* |
| 16† ‡ | 25 | 1.24% (0.75–1.73) | 21 | 1.19% (0.63–1.76) | 0.901 |
| 18† ‡ | 20 | 0.99% (0.56–1.43) | 9 | 0.68% (0.22–1.15) | 0.339 |
| 31‡ | 0 | 0 | 27 | 1.16% (0.67–1.66) | <0.001 * |
| 33† ‡ | 5 | 0.25% (0.03–0.47) | 10 | 0.59% (0.2–0.98) | 0.136 |
| 35 | 0 | 0 | 1 | 0.07% (0.0–0.21) | 0.317 |
| 39 | 1 | 0.04% (0.0–0.12) | 6 | 0.32% (0.03–0.6) | 0.07 |
| 45† | 3 | 0.15% (0.0–0.31) | 3 | 0.24% (0.0–0.54) | 0.577 |
| 51 | 0 | 0 | 2 | 0.14% (0.0–0.35) | 0.198 |
| 52† ‡ | 23 | 1.16% (0.68–1.64) | 40 | 2.62% (1.75–3.48) | 0.004 * |
| 56 | 0 | 0 | 4 | 0.27% (0.0–0.54) | 0.058 |
| 58† ‡ | 20 | 1.03% (0.58–1.48) | 18 | 1.07% (0.53–1.62) | 0.905 |
| 59 | 2 | 0.09% (0.0–0.21) | 2 | 0.15% (0.0–0.37) | 0.619 |
| 68† ‡ | 5 | 0.23% (0.03–0.44) | 7 | 0.39% (0.06–0.72) | 0.428 |
*Statistically significant at 0.05 level of significance by Holm's procedure that accounts for the multiple comparisons.
**Adjusted for the stratified sampling design.
†
The seven commonest HPV high-risk types in the HK cohort.
‡
The seven commonest HPV high-risk types in the GZ cohort.