期刊
CANCER
卷 121, 期 12, 页码 2004-2012出版社
WILEY
DOI: 10.1002/cncr.29319
关键词
leukemia; epidemiology; outcomes; early death; treatment-related mortality
类别
资金
- National Institutes of Health
- Stanford Cancer Institute
- Conquer Cancer Foundation of the American Society of Clinical Oncology Young Investigator Award
- KL2 Mentored Career Development Award of the Stanford Clinical and Translational Science Award [NIH KL2 TR 001083]
BACKGROUNDAcute myeloid leukemia (AML) is treated with conventional induction chemotherapy shortly after diagnosis for the majority of patients aged 65 years. A recent report suggested a substantial decline in the early, or 1-month, mortality rate in patients treated on clinical trials over the past 2 decades. It is unknown whether a similar improvement has been observed in the general population. METHODSThe authors examined the 1-month mortality rate in a large population-based series of 9380 patients with AML who were aged 65 years and were diagnosed and treated with chemotherapy between 1973 and 2010. RESULTSA significant decline was observed in the 1-month mortality rate from 18.7% among patients diagnosed from 1973 through 1977 (95% confidence interval [95% CI], 16.4%-21.2%) to 5.8% for those diagnosed between 2008 and 2010 (95% CI, 4.5%-7.6%) (P <.001). The median overall survival improved significantly from 6 months (95% CI, 5 months-7 months) in 1973 to 1977 to 23 months (95% CI, 16 months-20 months) in 2008 to 2010 (P <.001). Although age and geographic variation were found to significantly influence the 1-month mortality for the period between 1973 and 1977, these differences in 1-month mortality were no longer significant among patients with AML who were treated more recently (2008-2010). CONCLUSIONSOver the past 4 decades, early mortality has become uncommon in younger patients (aged 65 years) with newly diagnosed AML undergoing induction chemotherapy. It is encouraging that the improvements noted in 1-month mortality rate among a selective cohort of patients in clinical trials have also been observed in a population-based analysis. Cancer 2015;121:2004-2012. (c) 2015 American Cancer Society. Early death in patients aged65 years with acute myeloid leukemia has declined significantly over time from 18.7% for patients diagnosed between 1973 and 1977 to 5.8% for patients diagnosed between 2008 and 2010. Simultaneously, the median overall survival improved significantly from 6 months for those diagnosed between 1973 and 1977 to 23 months for those diagnosed between 2008 and 2010.
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