How often does cardiomyopathy occur?

Cardiomyopaty incide. Cardiomyopathy is a relatively common disease, with multiple causes including ischemic heart disease, idiopathic, alcoholism, and chagas' disease, and numerous other rarer causes. Ischemic heart disease is by far the most common cause.
Too general. The question is too broad. Cardiomyopathy is a term that describes a n abnormal heart function. Can be systolic vs diastolic. Can be inherited. Can be due to heart attack. Long standing blood pressure, infections, valve disease.