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Table 3 Comparison of three meta-analyses for HPV infection and breast cancer risk

From: Human papillomavirus infection and risk of breast cancer: a meta-analysis of case-control studies

First author [reference number] Searching Periods Selected articles Total Cases Total Controls SOR (95 % CI)
Li [12] - May 2010 10 447 275 3.63 (1.42–9.27)
Simoes [11] - Jan 2011 9 448 279 5.9 (3.23–10.67)
Zhou [13] - Jun 2013 16 n.d. n.d. 3.24 (1.59–6.57)
This study - Sep 2015 22 1897 948 4.02 (2.42–6.68)
  1. n.d not described