Fig. 1. Forest plot of allium vegetables consumption and gastric cancer risk.

Study‐specific and pooled odds ratios (ORs) of gastric cancer, and corresponding 95% confidence intervals (CIs), for the highest compared to the lowest category of consumption¹ of allium vegetables (a), onions (b) and garlic (c) in the Stomach cancer Pooling (StoP) Project consortium. Footnote: ¹Comparisons: highest versus lowest study-specific tertile of consumption for allium vegetables, and above versus below the study-specific median consumption for onions and garlic. The numbers of cases and controls reported in the forest plots for each study refer to subjects in the highest category of consumption.