Prognosis of Type 2 Diabetic Patients

Inclusion Criteria: * A total of 1200 patients with CAD and diagnosed type II diabetes and 600 patients with CAD but without evidence of diabetes will be included in the study. The patients will be recruited from the consecutive series of patients undergoing coronary angiography in the division of cardiology of the Oulu University Hospital. First, 600 patients with diabetes will be collected. Thereafter, 600 matched CAD patients without diabetes will be recruited. The groups will be matched in terms of following variables: 1. sex (1:1) 2. age (\<40 years, 40-50 years, 50-60 years, 60-70 years, 70-80 years) 3. history of recent (\<3 months) myocardial infarction (1:1) 4. type of coronary intervention after angiography (1:1 CABG ). * Diabetes is defined as fasting plasma glucose levels ≥ 7.0 and/or a 2-h postload value in the OGTT 11.1 mmol/l according to definition and diagnosis of diabetes mellitus and intermediate hyperglycemia : report of a WHO/IDF consultation. World Health Organization (WHO) 2006. - * Patients without a diabetes must be normoglycemic defined as plasma glucose levels \<6.1 mmol/l in the fasting state and a 2-h postload value \< 7.8 mmol/l in the oral glucose tolerance test (OGTT). Exclusion Criteria: * • NYHA class IV despite appropriate treatment of heart failure; * Planned ICD implantation; * Participation in a competing clinical trial that is not accepted by the Steering Committee; * Psychologically or physically (due to any other illness) unfit for participation in the study according to the opinion of the investigator; * Patient compliance doubtful; * Patients who are geographically or otherwise inaccessible for follow-up; * Pregnancy; * Life expectancy \< 1 year; * end-stage renal failure needing dialysis * age \< 18 years, or \> 80 years * permanent pacemaker or implantable cardioverter-defibrillator