Association of social deprivation with survival in younger adult patients with AML: an Alliance study.

Blood advances(2023)

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摘要
Survival of patients with acute myeloid leukemia (AML) is influenced by genetic factors, age, and race. Social deprivation is increasingly recognized as an important contributor to disparities in cancer outcomes, but studies of adult AML are lacking. We analyzed associations between social deprivation index (SDI) and outcome in 1,893 patients with AML treated on Cancer and Leukemia Group B/Alliance for Clinical Trials in Oncology frontline protocols. Patients with low (first quartile, lowest deprivation) and high (quartiles 2-4) SDI were analyzed for associations with baseline clinical, cytogenetic and molecular features, and outcomes. Except for racial-ethnic identity, SDI was not associated with baseline clinical characteristics. Patients aged <60 years with high SDI harbored BCOR (3% vs 7%, P=.03), IDH1 (6% vs 11%, P=.03) and STAG2 (2% vs 5%, P=.02) mutations less often than patients with low SDI, suggesting possible differences in the underlying disease biology. High SDI patients had shorter disease-free (median: 1.5 vs 2.8 years, P=.02) and overall survival (OS; median: 1.9 vs 3.0 years, P=.005) than low SDI patients. In multivariable analysis, high SDI was associated with worse OS (HR: 1.28, 95% CI: 1.06-1.55, P=.001). Survival differences occurred mainly in the 2017 European LeukemiaNet favorable genetic-risk group. There were no significant associations between SDI and molecular features or survival among patients aged ≥60 years. We conclude that high SDI associated with worse survival, independent from other pretreatment prognostic factors, in younger AML patients. The role of socioeconomic factors in AML should be further investigated to overcome potentially avoidable survival disparities.
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social deprivation,younger adult patients,survival,aml
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