Abstract
HPV type was evaluated in a select group of Chinese women that were positive with hybrid capture, and correlations were performed between the pathology found, the type of virus and a semiquantitation from the hybrid capture results. Totally 394 referred high-risk-HPV-positive women evaluated by Hybrid Capture 2 (HC-2) assay were enrolled. Before colposcopy, cervical specimens were collected from all participants and suspended into PreservCytcollection medium (Hologic Inc., Marlborough, MA), and tested with the APTIMA HPV16 18/45 mRNA assay. Colposcopy and diagnostic biopsies were done on all participants. Viral load was assessed by HC2 assay. Totally 55 women were diagnosed as CIN 3 plus cancer (≥CIN3), and the prevalence of HPV16/18/45 was 65.5% (95% confidence interval [CI], 52.9-78.0%) among these ≥CIN3 women. Compared with the group with positive HC2 but negative HPV16/18/45, the odds ratio (OR) to identify ≥CIN3 was 6.3 (95% CI, 3.2-12.3) for HPV16 and 3.2 (95% CI, 1.4-7.2) for HPV18/45. When using ≥CIN3 as an endpoint, the sensitivity and specificity was 65.5% (95% CI, 52.9-78.0%) and 72.0% (95% CI, 67.2-76.8%). In the case of HPV16/18/45 negative, no high HPV load had a statistically significant increased risk for the prevalence of ≥CIN3. HPV16, 18 and 45 infection is a major cause for ≥CIN3 in Chinese women. Women with positive HPV16/18/45 should be referred to colposcopy immediately. HPV load was not suitable for the further triaged of the HPV16/18/45 negative cases.
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