Fig. 6From: Effect of metformin on left ventricular mass and functional parameters in non-diabetic patients: a meta-analysis of randomized clinical trialsRandom-effects model for the association between metformin and NT-ProBNP/BNP using A SMCC stratified by treatment duration, B SMCR stratified by treatment duration, C SMCC using final time point, and D SMCR using the final time pointBack to article page