Table 5 List of studies that did not detect HPV DNA sequences in breast cancer tissues
S. No | Study report | Sample size | Total HPV positivity n (%) | HPV16 n (%) | HPV18 n (%) | HPV16/18 n (%) | Other HPV types n (%) | Country |
|---|---|---|---|---|---|---|---|---|
1 | Wrede et al., 1992 | 92 | 0 | 0 | 0 | 0 | 0 | UK |
2 | Bratthauer et al., 1992 | 43 | 0 | 0 | 0 | 0 | 0 | USA* |
3. | Gopalkrishna et al., 1996 | 30 | 0 | 0 | 0 | 0 | 0 | India |
4. | Czerwenka et al., 1996 | 20 | 0 | 0 | 0 | 0 | 0 | Austria* |
5. | Lindel et al., 2007 | 81 | 0 | 0 | 0 | 0 | 0 | Switzerland |
6. | de Cremoux et al., 2008 | 50 | 0 | 0 | 0 | 0 | 0 | France |
7. | Hedau et al. (Present study) | 252* | 0 | 0 | 0 | 0 | 0 | India |