GSTM1 and congestive heart failure: <h4>Objective</h4>This study evaluated the prognostic value of nutritional status indexes [albumin (ALB), hemoglobin (Hb), Geriatric Nutritional Risk Index (GNRI)] in elderly chronic heart failure (CHF) patients.<h4>Methods</h4>A total of 190 elderly CHF patients were categorized into good (<i>n</i> = 142) and poor (<i>n</i> = 48) prognosis groups based on 1-year outcomes (rehospitalization or all-cause death).