Types of Cancer | Number of studies | OR/HR/IRR | (95%CI) | I2 | Pvalue |
---|---|---|---|---|---|
Gastrointestinal cancers | |||||
 Colorectal cancer | 10 | 1.72 | 1.40–2.11 | 83.50% | < 0.01 |
 Colorectal adenomas | 9 | 1.37 | 1.29–1.46 | 49.40% | 0.045 |
Cholangiocarcinoma | |||||
 Intrahepatic cholangiocarcinoma | 6 | 2.46 | 1.77–3.44 | 72.60% | 0.003 |
 Extrahepatic cholangiocarcinoma | 4 | 2.24 | 1.58–3.17 | 68.04% | 0.023 |
Breast cancer | 4 | 1.69 | 1.44–1.99 | 0.00% | 0.727 |
Gastric cancer | 3 | 1.74 | 1.03–2.95 | 73.60% | 0.010 |
Pancreatic cancer | 3 | 2.12 | 1.58–2.83 | 0.00% | 0.476 |
Prostate cancer | 3 | 1.36 | 1.03–1.79 | 81.90% | 0.001 |
Esophageal cancer | 2 | 1.77 | 1.19–2.62 | 0.00% | 0.983 |