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Table 4 List of studies identified HPV DNA sequences in breast cancer tissues

From: Breast cancer and human papillomavirus infection: No evidence of HPV etiology of breast cancer in Indian women

S. No. Study report Sample
size
Total
HPV
positivity
n (%)
HPV16
n (%)
HPV18
n (%)
HPV16/18
n (%)
Other HPV
types n (%)
Country
1 Di Lonardo et al., 1992 70 7 (10) 7 (100) 0 0 0 Italy
2 Henning et al., 1999 41 19(46.3) 19 (100) 0 0 0 Sweden
3. Yu et al., 1999 72 19(26.3) 0 0 0 19 (HPV 33) China
4. Yu et al., 2000 32 14(43.8) 0 0 0 14(HPV33) China
5. Liu et al., 2004 17 6(35) 3(50) 1(17) 0 0 China
6. Damin et al., 2004 101 25(24.7) 14(56) 10(40) 1(4) 0 Brazil
7. Widschwendter et al., 2004 11 7(63.7) 7(100) 0 0 0 Austria*
8. de Villiers et al., 2005 29 25(86.2) 3(12) 0 0 22(88) USA*
9. Kroupis et al., 2006 107 17(15.9) 14(82.3) 0 0 3(17.6) Greece
10. Kan et al., 2005 50 24(48) 0 24(100) 0 0 Australia
11. Gumus et al., 2006 50 37(74) 0 20(54) 0 35(94.6) Turkey
12. Khan et al., 2008 124 26(20.9) 26(100) 0 0 0 Japan
13. de Leon et al., 2009 51 15(29.5) 10(66.7) 3(20) 2(13.3) 0 Mexico
14. Mendizabal-Ruiz et al., 2009 67 3(4) 1(33.3) 1(33.3) 0 1(33.3) Mexico
15. Heng et al., 2009 26 biopsies 8 (30.7) 1 (3.8) 7 (26.9) 0 0 Australia
   9 cell lines 2 (22) 0 2 (22) 0 0