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JAMA. 1999;281:2288.

In the Clinical Cardiology article entitled "Clinical Course of Hypertrophic Cardiomyopathy in a Regional United States Cohort," published in the February 17, 1999, issue of THE JOURNAL (1999;281:650-655), Figure 4B on page 653 was reproduced with an incorrect key. The correct designation appears in Figure 4B and shows that atrial fibrillation occurring in 50 patients with hypertrophic cardiomyopathy conveyed diminished longevity compared with 227 patients with this disease who were in sinus rhythm.

View larger version (12K): [in this window] [in a new window] Figure 4. Survival According to Clinical Variables Probability of survival (by Kaplan-Meier estimates) is shown for 4 clinical variables that were significantly associated with outcome in 277 unselected patients with hypertrophic cardiomyopathy. A, Severity of symptoms at initial diagnosis expressed in terms of New York Heart Association (NYHA) functional class (P=.004). B, Occurrence of atrial fibrillation (paroxysmal or chronic) (P=.002). C, Peak instantaneous left ventricular outflow tract gradient (<30 or 30 mm Hg) estimated by Doppler echocardiography; preoperative gradient was used in patients undergoing myotomy-myectomy (P=.01). D, Magnitude of maximum left ventricular wall thickness (25 or >25 mm) from 2-dimensional echocardiogram (P<.001).

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