Table 1

Characteristics of 22 published studies included in this meta-analysis
First author Year Study location Cancer type Sample size Source of controls Genotyping methods
1. Lu JC 2006 USA SCCHN 716/719 HCC PCR-RFLP
2. Gil J 2011 Poland CC 133/100 HCC PCR-RFLP
3. Webb PM 2005 Australia OC 548/335 PCC PCR
4. Gresner P 2012 Poland SCCHN 81/111 PCC PCR
5. Seedhouse C 2004 UK AL 267/186 PCC PCR
6. Jawad M 2006 UK AL 267/186 PCC PCR
7. Krupa R 2011 Poland CC 100/100 HCC PCR
8. Sliwinski T 2010 Poland SCCHN 288/353 HCC PCR-RFLP
9. Hamdy MS 2011 Egypt AL 50/30 HCC PCR-RFLP
10. Liu L 2011 China AL 625/704 HCC PCR
11. Romanowicz-MakowskaH 2012 Poland CC 320/320 HCC PCR
12. WerbouckJ 2008 Belgium SCCHN 152/157 HCC PCR
13. Romanowicz-MakowskaH 2011 Poland OC 120/120 HCC PCR
14. Bhatla D 2008 USA AL 452/646 PCC PCR
15. Voso MT 2007 Italy AL 160/161 HCC PCR-RFLP
16. Mucha B 2012 Poland CC 200/200 HCC PCR-RFLP
17. Zhang ZQ 2009 China AL 166/458 HCC PCR-RFLP
18. Auranen A (UK) 2005 UK OC 729/847 PCC PCR
18. Auranen A (USA) 2005 USA OC 326/419 PCC PCR
18. Auranen A (Danish) 2005 Denmark OC 278/699 PCC PCR
21. Yang L 2011 China AL 379/704 HCC PCR
22. Rollinson S 2006 UK AL 479/952 PCC PCR

SCCHN: squamous cell carcinoma of the head and neck; CC: colorectal cancer; OC: ovarian cancer; AL: acute leukaemia; HCC: hospital-based case-control; PCC: population-based case-control; PCR: polymerase chain reaction; RFLP: restriction fragment length polymorphism.

Cheng et al.

Cheng et al. Diagnostic Pathology 2014 9:18   doi:10.1186/1746-1596-9-18

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