 Subjects and method One thousand two hundred and sixteen patients admitted to hospital with principle diagnosis of coronary heart disease and known or newly confirmed diabetes on oral glucose tolerance test will be enrolled. Patients in the intervention arm n608 will receive telephone intervention between clinic visits by diabetes nurse educator using structured counselling tools with particular emphasis on adherence to lifestyle modification and medications as well as self-monitoring of blood glucose, blood pressure and body weight. Patients in control group n608 will not receive telephone intervention. Both groups will be followed up by their usual medical teams in their hospitals upon discharge. 