Human development index is associated with mortality-to-incidence ratios of gastrointestinal cancers

Figure 4 Overall mortality-to-incidence ratio of gastrointestinal cancers in four human development index groups. The mortality-to-incidence ratio (MIR) differs significantly among areas having very high, high, medium and low human development index (HDI); ^aP < 0.05 vs very high HDI areas; ^cP < 0.05 vs high HDI areas; and ^eP < 0.05 vs medium HDI areas; one-way ANOVA followed by the Tukey-Kramer post-hoc test.