Figure 4From: Effect of chromium supplementation on glycated hemoglobin and fasting plasma glucose in patients with diabetes mellitusForest plot depicting results from each subtype of Cr supplement evaluating the effects of A1C vs. placebo based on year of publication. Note: The squares represent the pooled results of that study in addition to all studies preceding it. Error bars represent 95% CIs and the diamond represents the overall pooled results. The solid vertical line extending upward from 0 is the null value.Back to article page