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Table 2 Characteristic of eligible studies included in meta-analysis of HIF1A 1790G/A polymorphism

From: A meta-analysis of hypoxia inducible factor 1-alpha (HIF1A) gene polymorphisms: association with cancers

Study

Year

Country

Ethnicity

Cancer

Case/Control

HWE

Clifford et al. [8]

2001

Caucasian

Caucasian

Renal cancer

48/144

0.866(Y)

Tanimoto et al. [9]

2003

Japan

Asian

Head neck squeamish cell carcinoma

55/110

0.655(Y)

Ollerenshaw et al. [10]

2004

Caucasian

Caucasian

Renal cancer

146/288

<0.001(N)

Fransen et al. [12]

2006

Sweden

Caucasian

Colorectal cancer

198/256

0.775(Y)

Orr-Urtreger et al. [30]

2007

Israel

Caucasian

Prostate cancer

200/300

0.954(Y)

Li et al. [14]

2007

USA

Mixed

Prostate cancer

1066/1264

0.810(Y)

Apaydin et al. [31]

2008

Turkey

Caucasian

Breast cancer

102/102

0.840(Y)

Kim et al. [16]

2008

Korea

Asian

Breast cancer

90/102

0.06(Y)

Muñoz et al. [32]

2009

Spain

Caucasian

Oral squamous cell carcinoma

64/139

0.693(Y)

Chen et al. [21]

2009

Taiwanese

Asian

Oral squamous cell carcinoma

174/347

0.701(Y)

Morris et al. [20]

2009

polish

Caucasian

Renal cancer

325/309

0.662(Y)

Li K et al. [33]

2009

Tibetan

Asian

Gastric cancer

87/106

0.764(Y)

Hsiao et al. [34]

2010

Taiwan

Asian

Hepatocellular carcinoma

102/347

0.701(Y)

Putra et al. [25]

2011

Japan

Asian

Lung cancer

83/110

0.655(Y)

Wang et al. [26]

2011

Japan

Asian

Pancreatic cancer

263/271

0.486(Y)

Kuo et al. [27]

2012

China

Asian

Lung cancer

285/300

0.154(Y)

Li et al. [28]

2012

China

Asian

Prostate cancer

662/716

0.554(Y)

Mera-Mene et al. [35]

2012

Spain

Caucasian

Lymph node metastasis

111/139

0.693(Y)

Qin et al. [36]

2012

Asian

Asian

Renal cancer

620/623

0.411(Y)

  1. HWE Hardy-Weinberg Equilibrium