The non mortality of hypertrophic cardiomyopathy in an unselected, community diagnosed and treated population.

Hypertrophic Cardiomyopathy (HC) is portrayed in past literature as having an ominous prognosis. However, most studies emanated from medical centers and suffered from potential referral bias. A population based, community diagnosed and treated survival study is analyzed by the life table method. Despite potential causes for both underestimation of the observed mortality as well as for overestimation of expected mortality, the study appears to reveal a more favorable prognosis for HC in this population.