Circannual variation in blood pressure and in the incidence of acute myocardial infarction is well known but has not been investigated in chronic heart failure. This report describes and compares the seasonal variation of chronic heart failure hospitalizations and mortality in the French population.
Department of Public Health and Medical Information, Nice Teaching Hospital, and the Department of Cardiology, Nice Teaching Hospital (P.G.), Nice, France. boulayf@hotmail.com