Long-term survival outcome of childhood acute myeloid leukemia: a 43-year experience in Thailand, a resource-limited country

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Abstract
Although there have been advances in treating pediatric patients with acute myeloid leukemia (AML) in developed countries, outcomes in low- to middle-income countries remain poor. The goal of this study was to investigate the outcomes in children with AML who were treated at a tertiary care center in Thailand. We divided the study into 4 research periods based on the chemotherapy protocols employed. The 5-year probabilities of event-free survival (pEFS) rates for periods 1-4 were 19.0%, 20.6%, 17.4%, and 37.3% (p value = 0.32), while the 5-year probabilities of overall survival (pOS) rates were 19.0%, 24.7%, 18.7%, and 42.5% (p value = 0.18), respectively. The multivariable model indicated an improvement in 5-year pOS between periods 1 and 4 (p value = 0.04). Age, white blood cell count, and study period were significant predictors of survival outcomes. The pOS of AML patients improved over time, increasing from 19.0% to 42.5%.

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