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Table 2 Meta-analysis of Fish Consumption and Gastric Cancer Risk

From: Fish consumption and the risk of gastric cancer: systematic review and meta-analysis

Category of Studies

No. of Studies

Summary OR or RR (95% CI)

I2

All studies

17

0.87 (0.71-1.07)

73.3%

Case-control studies

15

0.85 (0.68-1.06)

76.0%

Population-based case-control studies

7

0.87 (0.60-1.27)

82.1%

Hospital-based case-control studies

8

0.82 (0.63-1.05)

56.3%

Population-based versus hospital-based case-control studies

  

0.0%

Cohort studies

2

1.11(0.77-1.62)

0.0%

Case-control versus cohort studies

  

31.4%

Western studies

9

0.92 (0.71-1.19)

80.1%

Eastern studies

8

0.80 (0.54-1.16)

64.3%

Western versus Eastern studies Mail assessment Interview versus mail assessment

  

0.0%

Interview assessment

15

0.82 (0.66-1.02)

69.7%

Mail assessment

2

1.26 (1.03-1.55)

0.0%

Interview versus mail assessment

  

73.3%

  1. Abbreviations: OR: Odd Risk, RR: Relative Risk; CI: Confidence Interval