Value of the 6-minute walk test in older patients with chronic heart failure

We assessed the prognostic value of the 6-minute walk test (6-MWT) among 1592 subjects with differing degrees of left ventricular systolic dysfunction (LVSD). We found that the 6-MWT was an independent predictor of mortality, particularly among patients with more than mild LVSD. The 6-MWT provides less prognostic utility in patients with mild or lesser LVSD, however