Liquid-based cytology and human papillomavirus testing: a pooled analysis using the data from 13 population-based cervical cancer screening studies from China

Qin-Jing Pan, Shang-Ying Hu, Hui-Qin Guo, Wen-Hua Zhang, Xun Zhang, Wen Chen, Jian Cao, Yong Jiang, Fang-Hui Zhao, You-Lin Qiao
Gynecologic Oncology 2014, 133 (2): 172-9

OBJECTIVE: The objective of this study was to evaluate the impact of introducing HR-HPV testing in cytology regarding cervical cancer screening practice.

METHODS: A pooled analysis of liquid-based cytology (LBC) and HR-HPV testing using data from 13 population-based cervical cancer screening studies conducted in China was performed. Participants (n=25,404) received LBC and HR-HPV testing. Women found to be positive on screening were referred for colposcopy and biopsy. The effectiveness of screening strategies that use: LBC with HR-HPV triage for atypical squamous cells of undetermined significance (ASC-US), HR-HPV testing with cytology triage for HPV positive tests, or LBC and HPV cotesting was compared with that of LBC screening alone.

RESULTS: LBC with HR-HPV triage for ASC-US had similar sensitivity compared with LBC alone, but significantly increased specificity for both cervical intraepithelial neoplasia grade 2 or worse (CIN2+) and CIN3 or worse (CIN3+) endpoints, and had the best balance between sensitivity and specificity among the strategies. LBC and HR-HPV cotesting had the highest sensitivity and negative predictive value (NPV) and could permit a safe extension of screening intervals. Through the use of an immediate colposcopy threshold of ASC-US or worse for HR-HPV positive women and the use of a raised threshold of low-grade squamous intraepithelial lesion (LSIL) or worse for HR-HPV negative women, LBC and HR-HPV cotesting could provide the same effectiveness as LBC testing with HR-HPV triage for ASC-US at baseline tests.

CONCLUSIONS: The results of the current study support the use of the cervical cancer screening guidelines in China.

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