Fig. 2From: Systematic review and meta-analysis of head-to-head trials comparing sulfonylureas and low hypoglycaemic risk antidiabetic drugsAll-cause mortality of sulfonylureas versus active control. Heterogeneity chi-squared = 16.99 (d.f. = 21) p = 0.712; I2 = 0.0%; Test of OR = 1: z = 1.94 p = 0.053Back to article page