Table 1 Baseline Characteristics of Eligible Studies

From: The -1082A>G polymorphism in promoter region of interleukin-10 and risk of digestive cancer: a meta-analysis

Author

Year

Cancer Type

Country

Ethnicity

Study Design

Sample Size

Cases

Controls

HWE

Alpízar-Alpízar W

2005

GC

Costa Rica

Latinos

PB

Small

45

44

Y

Bai XL

2008

GC

China

Asians

HB

Small

104

111

NA

Bouzgarrou N

2009

HCC

Tunisia

African

HB

Small

58

145

Y

Cacev T

2008

CRC

Croatia

Caucasian

PB

Small

160

160

N

Cozar JM

2007

CRC

Spain

Caucasian

HB

Small

96

176

Y

Crivello A

2006

CRC

Italy

Caucasian

PB

Small

62

124

Y

Crusius JB

2008

GC

European

Caucasian

PB

Large

235

1134

N

El-Omar EM(EC)

2003

EC

USA

Mixed

PB

Small

161

210

Y

El-Omar EM(GC)

2003

GC

USA

Mixed

PB

Large

314

210

Y

Forte GI

2008

GC

Italy

Caucasian

HB

Small

42

185

N

García-González MA

2007

GC

Spain

Caucasian

PB

Large

404

404

Y

Guo W (EC)

2005

EC

China

Asians

PB

Large

203

443

N

Guo W (GC)

2005

GC

China

Asians

PB

Large

152

443

N

He B

2012

GC

China

Asians

HB

Small

196

248

Y

Heneghan MA

2003

HCC

China

Asians

HB

Small

98

175

Y

Kamangar F

2006

GC

Finland

Caucasian

PB

Small

112

205

Y

Kang JM

2009

GC

Korea

Asians

HB

Large

334

335

Y

Kim J

2012

GC

Korea

Asians

HB

Large

495

495

Y

Ko KP

2009

GC

Korea

Asians

PB

Small

80

336

Y

Lee JY

2005

GC

Korea

Asians

HB

Small

122

120

Y

Liu J

2011

GC

China

Asians

HB

Small

234

243

N

Lu W

2005

GC

China

Asians

PB

Large

250

300

N

Macarthur M

2005

CRC

UK

Caucasian

PB

Large

257

408

Y

Migita K

2005

HCC

Japan

Asians

HB

Small

48

188

N

Morgan DR

2006

GC

Honduras

Latinos

HB

Small

170

161

Y

Nieters A

2005

HCC

China

Asians

HB

Small

249

250

NA

Ognjanovic S

2009

HCC

USA

Caucasian

PB

Small

118

230

NA

Pan XF

2013

GC

China

Asians

HB

Large

308

308

Y

Savage SA (EC)

2004

EC

China

Asians

HB

Large

115

385

N

Savage SA (GC)

2004

GC

China

Asians

HB

Small

84

385

N

Scola L

2009

PC

Italy

Caucasian

PB

Small

48

131

Y

Shin CM

2011

GC

Korea

Asians

HB

Large

632

237

Y

Shin HD

2003

HCC

Korea

Asians

HB

Large

230

792

Y

Sugimoto M

2007

GC

Japan

Asians

HB

Small

104

168

Y

Wu MS

2002

GC

China

Asians

HB

Small

150

220

Y

Xiao H

2009

GC

China

Asians

HB

Large

220

624

Y

Yin YQ

2012

GC

China

Asians

HB

Small

75

75

N

Zambon CF

2005

GC

Italy

Caucasian

HB

Large

129

644

Y

Zeng X

2012

GC

China

Asians

PB

Small

151

153

N

Zhou Y

2011

GC

China

Asians

PB

Small

150

150

N

  1. CRC: Colorectal Cancer; EC: Esophageal Cancer; GC: Gastric Cancer; HCC: Hepatocellular Carcinoma; PC: Pancreatic Cancer; HB: hospital-based; PB: population-based; Large: >500 participants; Small: <500 participants; HWE: Hardy-Weinberg equilibrium; Y: agreement with HWE; N: disagreement with HWE; NA: unable to estimate.