Fig. 1From: Differential response in levels of high-density lipoprotein cholesterol to one-year metformin treatment in prediabetic patients by race/ethnicityOne-year metformin treatment increases HDL cholesterol in Whites and African Americans, but not in Hispanics. Levels of HDL-C at baseline and one-year checkup in a Whites, b African Americans and c Hispanics. Paired Student t tests were performed to compare HDL-C levels in the baseline and year-one checkup. HDL-C, high-density lipoprotein cholesterol; NS, non-significant. Data are represented as mean ± SEMBack to article page