Table 2.
A comparison of the HPV genotypes detected in hybrid capture 2 (hc2)-positive specimens stored frozen at pH 12–13 for 6 months, 4 months, and 2.5 months (n = 143 for each time point). The results were compared to hc2-positives specimens stored at pH 6–7 for one month (n = 142) (“Control”).
| Storage Time at pH 12–13 | ||||||
|---|---|---|---|---|---|---|
| 6 Months | 4 Months | 2.5 Months | Control | p | ptrend | |
| HPV6 | 1.4% | 4.9% | 1.4% | 0.7% | 0.1 | 0.3 |
| HPV11 | 0.7% | 0.0% | 0.0% | 1.4% | 0.2 | 0.4 |
| HPV16 | 22.4% | 23.1% | 11.2% | 21.1% | 0.03 | 0.3 |
| HPV18 | 14.0% | 8.4% | 8.4% | 5.6% | 0.1 | 0.02 |
| HPV26 | 0.0% | 0.0% | 0.0% | 0.0% | n/a | n/a |
| HPV31 | 7.7% | 9.8% | 10.5% | 12.0% | 0.7 | 0.2 |
| HPV33 | 2.8% | 1.4% | 4.9% | 3.5% | 0.4 | 0.4 |
| HPV35 | 4.2% | 5.6% | 7.0% | 2.8% | 0.4 | 0.7 |
| HPV39 | 11.2% | 7.7% | 6.3% | 9.2% | 0.5 | 0.5 |
| HPV45 | 6.3% | 7.0% | 6.3% | 8.5% | 0.9 | 0.5 |
| HPV51 | 4.9% | 5.6% | 9.8% | 9.9% | 0.2 | 0.05 |
| HPV52 | 12.6% | 11.2% | 16.8% | 11.3% | 0.5 | 0.9 |
| HPV53 | 7.0% | 2.1% | 7.0% | 4.9% | 0.2 | 0.9 |
| HPV56 | 14.0% | 11.2% | 9.1% | 11.3% | 0.8 | 0.5 |
| HPV58 | 7.0% | 6.3% | 7.0% | 9.2% | 0.8 | 0.5 |
| HPV59 | 5.6% | 5.6% | 4.9% | 3.5% | 0.8 | 0.4 |
| HPV66 | 7.7% | 9.8% | 6.3% | 4.9% | 0.5 | 0.2 |
| HPV68 | 13.3% | 11.9% | 10.5% | 12.7% | 0.9 | 0.8 |
| HPV73 | 3.5% | 2.8% | 2.1% | 0.7% | 0.5 | 0.1 |
| HPV82 | 2.8% | 0.7% | 0.7% | 2.1% | 0.4 | 0.7 |