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Table 3 Frequency of HPV-positive by cases and controls

From: Presence of human papillomavirus DNA in breast cancer: a Spanish case-control study

  Cases (n = 251) Controls (n = 186) OR (CI 95%)
N % N %
HPV HPV+ 130 51.8% 49 26.3% 3.0 **
HPV- 121 48.2% 137 73.7% (2.0–4.5)
  1. ** Statistic Signification <0.01, CI 95% Confidence Interval 95%