Table 1 shows demographic and clinical characteristics in two treated groups at baseline, demonstrating both groups were comparable with regard to gender distribution, age, angiotensin converting enzyme inhibitors, angiotensin receptor blocker, Non-steroid anti-inflammatory drug, hypertension, smoking, theophylline, statin, diabetes mellitus (DM), diuretics, and consuming vitamin E or C. This evidence concerns the gene ACE and diabetes mellitus.