Document Classification

Section Type: RESULTS

Text: Metformin improved AIx [-6. 1 % ; 95 % confidence interval (CI) for the difference -8. 5 to -3. 5 % ; P < 0. 001], aortic PWV (-0. 76 m/sec ; 95 % CI for the difference -1. 12 to -0. 4 m/sec ; P < 0. 001), brachial PWV (-0. 73 m/sec ; 95 % CI for the difference -1. 09 to -0. 38 ; P < 0. 001), central blood pressure (P < 0. 001), and endothelium-dependent (AIx after albuterol ; P = 0. 003) and endothelium-independent (AIx after nitroglycerin ; P < 0. 001) vascular responses.