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Copyright ©2014 Baishideng Publishing Group Inc.
World J Gastroenterol. Oct 14, 2014; 20(38): 13767-13774
Published online Oct 14, 2014. doi: 10.3748/wjg.v20.i38.13767
Figure 1
Figure 1 Meta-analysis of 3 studies predicting gastric cancer risk. Meta-analysis was conducted on the base of the results of previous studies using the random effect model by Stats Direct3 (Stats Direct Ltd. Cheshire United Kingdom). Subjective studies are shown in Table 3. Although there is no cancer in group A in the Wakayama study by Ohata et al[38], it assumed that three was 1 cancer in group A in this study for meta-analysis. Because of the small number of group D, groups C and D were combined. The relative risk of group B was calculated and referred to that of group A. The relative risk of group C + D were calculated and referred to those of group A and group B.