Prognostic significance of the Geriatric 8 score alone and included with genetic risk group in older adults with acute myeloid leukemia.

INTRODUCTION:As the numbers of older adult patients with acute myeloid leukemia (AML) continue to increase, the establishment of a simple geriatric assessment specifically for AML represents an unmet need. This study aimed to assess the impact of the Geriatric 8 (G8) score on overall survival (OS). MATERIALS AND METHODS:We retrospectively analyzed 100 patients ≥60 years old with newly diagnosed AML. RESULTS:Multivariate Cox modeling identified G8 score as a significant prognostic factor for OS (hazard ratio 0.891, 95% confidence interval [CI] 0.808-0.983). A linear association between G8 score and mortality risk was confirmed in a Cox model with restricted cubic spline. Multivariate receiver operating characteristic curves demonstrated a significant improvement in prediction ability when G8 score was added to cytogenetic risk group. The combination of G8 score and cytogenetic risk group yielded a significant continuous net reclassification improvement (0.718; 95%CI 0.353-1.082; P < 0.001). Decision curve analysis showed a clinical net benefit associated with adding G8 score to cytogenetic risk group. DISCUSSION:G8 score not only offered a strong prognostic factor for OS, but also markedly improved prediction accuracy for mortality when incorporated with cytogenetic risk group.