Table 2.
Prevalence of HPV infection, abnormal cervical cytology and histology.
| All | Group A (20–30 yrs) | Group B (35–36 yrs) | Group C (40–41 yrs) | P for trend | |||||
|---|---|---|---|---|---|---|---|---|---|
| (n = 3231) | (n = 2179) | (n = 725) | (n = 327) | ||||||
| n | % | n | % | n | % | n | % | ||
| HPV infection | |||||||||
| High-risk HPVa | 400 | 12.4% | 331 | 15.2% | 50 | 6.9% | 19 | 5.8% | < 0.01 |
| HPV16/18 | 76 | 2.4% | 66 | 3.0% | 7 | 1.0% | 3 | 0.9% | < 0.01 |
| HPV16/18/31/33/45/52/58 | 231 | 7.1% | 195 | 8.9% | 26 | 3.6% | 10 | 3.1% | < 0.01 |
| Cytology | |||||||||
| NILM | 3033 | 93.9% | 2021 | 92.7% | 692 | 95.4% | 320 | 97.9% | – |
| ASC-US or worse | 198 | 6.1% | 158 | 7.3% | 33 | 4.6% | 7 | 2.1% | < 0.01 |
| Histology | |||||||||
| CIN1 | 54 | 1.7% | 43 | 2.0% | 9 | 1.2% | 2 | 0.6% | 0.04 |
| CIN2 | 33 | 1.0% | 29 | 1.3% | 4 | 0.6% | 0 | 0.0% | 0.01 |
| CIN3 | 13 | 0.4% | 7 | 0.3% | 5 | 0.7% | 1 | 0.3% | 0.60 |
| ICC | 1 | 0.0% | 1 | 0.0% | 0 | 0.0% | 0 | 0.0% | 0.99 |
aHPV16/18/31/33/35/39/45/51/52/56/58/59/68 (HC2).