Fig. 2From: Effect of low-dose tadalafil once daily on glycemic control in patients with type 2 diabetes and erectile dysfunction: a randomized, double-blind, placebo-controlled pilot studyChanges in the HbA1c level over the 6-month study period in the tadalafil and placebo groups. Repeated measures analysis of variance shows significant differences between groups during the 6-month study period (P = 0.021)Back to article page