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- Bower, H, et al.
(författare)
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Continued improvement in survival of acute myeloid leukemia patients: an application of the loss in expectation of life
- 2016
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Ingår i: Blood cancer journal. - : Springer Science and Business Media LLC. - 2044-5385. ; 6, s. e390-
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Tidskriftsartikel (refereegranskat)abstract
- We evaluated temporal trends in survival of Swedish acute myeloid leukemia (AML) patients diagnosed between 1973 and 2011 using relative survival ratios (RSRs) and a measure called the loss in expectation of life (LEL). RSRs increased most for patients <60 years at diagnosis during the first calendar periods, but between 1997–2005 and 2006–2011 the most pronounced increase was for those aged 61–70 years at diagnosis; RSR changed from 0.16 (95% confidence interval (CI): 0.13–0.19) to 0.28 (95% CI: 0.23–0.33), respectively. The LEL for males aged 35 years at diagnosis was 41.0 (95% CI: 40.1–41.8) years in 1975 and 19.5 (95% CI: 16.4–22.5) years in 2011. For males aged 65 years, the corresponding figures were 13.8 (95% CI: 13.7–14.0) and 12.0 (95% CI: 11.3–12.8). Conditional LEL estimates suggested that patients who survive 5 years postdiagnosis have shorter remaining lifespan than the general population. The proportion of expected life lost (PELL) suggested that male 65-year-old patients lost 75% of their life expectancy in 2005 and 66% if they were diagnosed in 2011. Survival continued to increase to 2011, with larger improvements in those aged 61–70 years at diagnosis. The LEL and PELL are intuitive measures that may be useful in communicating survival statistics to patients, clinicians and health-care providers.
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- Derolf, AR, et al.
(författare)
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Improved patient survival for acute myeloid leukemia: a population-based study of 9729 patients diagnosed in Sweden between 1973 and 2005
- 2009
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Ingår i: Blood. - : American Society of Hematology. - 1528-0020 .- 0006-4971. ; 113:16, s. 3666-3672
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Tidskriftsartikel (refereegranskat)abstract
- We evaluated survival patterns for all registered acute myeloid leukemia (AML) patients diagnosed in Sweden in 1973 to 2005 (N = 9729; median age, 69 years). Patients were categorized into 6 age groups and 4 calendar periods (1973-1980, 1981-1988, 1989-1996, and 1997-2005). Relative survival ratios were computed as measures of patient survival. One-year survival improved over time in all age groups, whereas 5- and 10-year survival improved in all age groups, except for patients 80+ years. The 5-year relative survival ratios in the last calendar period were 0.65, 0.58, 0.36, 0.15, 0.05, and 0.01 for the age groups 0 to 18, 19 to 40, 41 to 60, 61 to 70, 71 to 80, and 80+ years, respectively. Intensified chemotherapy, a continuous improvement in supportive care, and allogeneic stem cell transplantation are probably the most important factors contributing to this finding. In contrast, there was no improvement in survival in AML patients with a prior diagnosis of a myelodysplastic syndrome during 1993 to 2005 (n = 219). In conclusion, AML survival has improved during the last decades. However, the majority of AML patients die of their disease and age remains an important predictor of prognosis. New effective agents with a more favorable toxicity profile are needed to improve survival, particularly in the elderly.
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