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Breast Cancer Res Treat. 2011 Apr;126(2):515-20. doi: 10.1007/s10549-010-1128-0. Epub 2010 Aug 26.

Human papillomavirus infection and sporadic breast carcinoma risk: a meta-analysis.

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National Office for Cancer Prevention and Control, Cancer Institute and Hospital, Chinese Academy of Medical Sciences, No. 17 Panjiayuannanli, Chaoyang District, Beijing, 100021, China.


Despite an increase in the number of molecular epidemiological studies conducted in recent years to evaluate the association between HPV infection and risk of breast carcinoma, the studies remain inconclusive. Here, a meta-analysis was conducted to estimate the prevalence of HPV in breast carcinoma and test the association. Studies on HPV DNA detection in sporadic breast carcinoma in female using polymerase chain reaction were included. Information on overall and type-specific (HPV 6, 11, 16, 18, 31, 33, 35, 45 and 51) HPV prevalence were required, plus detailed descriptions of study populations, HPV DNA source, publication calendar period and PCR primers used for HPV DNA detection and typing. We revealed that 24.49% of the breast carcinoma cases were associated with HPV, 32.42% occurred in Asia and 12.91% in Europe. The four most commonly identified HPV types, in the order of decreased prevalence, were HPV33, 18, 16, and 35. The detection of HPV was mostly influenced by publication calendar period and PCR primers used. In addition, the analysis of ten case-control studies containing 447 breast carcinoma cases and 275 controls showed a significant increase in breast carcinoma risk with HPV positivity (OR = 3.63, 95% CI = 1.42-9.27). These results suggest that it's difficult to rule out the possibility of the association of HPV and breast carcinoma at present according to available publication proofs.

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