Fig. 7

Random-effects meta-regression plots of the association between duration of intervention and weighted mean difference of A) TG (mg/dl); B) TC (mg/dl); C) LDL (mg/dl) and D) HDL (mg/dl). TG, triglyceride; TC, total cholesterol; LDL, low-density lipoprotein; HDL, high density lipoprotein; CI, confidence interval