From: Human papillomavirus infection and risk of breast cancer: a meta-analysis of case-control studies
Types | Sub-group | Â | Numbers | I-squared (%) | SOR with 95Â % CI by REM |
---|---|---|---|---|---|
Any |  |  | 22 | 44.7 | 4.02 [2.42–6.68] |
 | Nationality of subjects | Far-East | 10 | 16.4 | 2.60 [1.25–5.38] |
 |  | Middle-East | 5 | 66.4 | 7.04 [2.43–20.42] |
 |  | America | 5 | 59.2 | 4.23 [1.06–16.84] |
 |  | Europe & Oceania | 2 | 0.0 | 4.39 [1.77–10.86] |
 | Specimen types | PET | 15 | 45.4 | 5.60 [2.79–11.25] |
 |  | FFT | 7 | 47.5 | 2.61 [1.22–5.61] |
 | Year of publication | −2010 | 9 | 0.0 | 5.10 [2.89–8.99] |
 |  | 2011- | 13 | 60.1 | 3.55 [1.68–7.50] |
16 |  |  | 11 | 32.5 | 5.67 [2.21–14.52] |
 | Nationality of subjects | Far-East | 3 | 0.0 | 12.37 [2.83–54.15] |
 |  | Middle-East | 4 | 0.0 | 7.87 [1.76–35.23] |
 |  | America | 4 | 54.3 | 3.58 [0.61–21.03] |
 | Specimen types | PET | 9 | 25.9 | 4.25 [1.57,11.54] |
 |  | FFT | 2 | 0.0 | 16.47 [2.94–92.18] |
 | Year of publication | −2010 | 5 | 0.0 | 12.47 [3.73–41.71] |
 |  | 2011- | 6 | 30.1 | 3.25 [0.97–10.87] |
18 |  |  | 10 | 0.0 | 2.97 [1.64–5.38] |
 | Nationality of subjects | Far-East | 3 | 0.0 | 1.54 [0.26–9.20] |
 |  | Middle-East | 4 | 52.5 | 3.37 [0.70–16.22] |
 |  | America | 3 | 0.0 | 4.50 [1.89–10.68] |
 | Specimen types | PET | 7 | 28.0 | 3.13 [1.09–9.03] |
 |  | FFT | 3 | 0.0 | 3.70 [1.54–8.88] |
 | Year of publication | −2010 | 4 | 12.4 | 1.59 [0.51–4.96] |
 |  | 2011- | 6 | 0.0 | 4.62 [2.17–9.81] |
33 |  |  | 5 | 0.0 | 3.64 [1.26–10.48] |
 | Nationality of subjects | Far-East | 2 | 69.6 | 2.10 [0.06–68.51] |
 |  | Middle-East | 3 | 0.0 | 3.70 [0.98–13.90] |
 | Specimen types | PET | 5 | 0.0 | 3.64 [1.26–10.48] |
 |  | FFT | - | - | - |
 | Year of publication | −2010 | 3 | 40.4 | 2.64 [0.44–15.76] |
 |  | 2011- | 2 | 0.0 | 4.88 [0.87–27.56] |