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Cancer-Attributable Mortality among Solid Organ Transplant Recipients in the United States, 1987-2014
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April 29 2019
Source: Cancer. 125(15):2647-2655
Details:
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Alternative Title:Cancer
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Personal Author:
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Description:Background:
Solid organ transplant recipients have an elevated risk of cancer. Quantifying deaths attributable to cancer can inform priorities to reduce cancer burden.
Methods:
Linked transplant and cancer registry data were used to identify incident cancers and deaths among solid organ transplant recipients in the United States (1987–2014). Population-attributable fractions (PAFs) of deaths due to cancer and corresponding cancer-attributable mortality rates were estimated using Cox models.
Results:
Among 221,962 transplant recipients, 15,012 developed cancer. Thirteen percent of deaths (PAF=13.2%) were attributable to cancer, corresponding to a cancer-attributable mortality rate of 516 per 100,000 person-years. Lung cancer was the largest contributor to mortality (PAF=3.1%), followed by non-Hodgkin lymphoma (NHL, PAF=1.9%), colorectal cancer (PAF=0.7%), and kidney cancer (PAF=0.5%). Cancer-attributable mortality rates increased with age at transplantation, reaching 1229 per 100,000 person-years among recipients 65+ years old. NHL was the largest contributor among children (PAF=4.1%) and lung cancer among 50+ year-olds (PAFs=3.7–4.3%). Heart recipients had the highest PAF (16.4%), but lung recipients had the highest cancer-attributable mortality rate (1241 per 100,000 person-years). Overall, mortality attributable to cancer increased steadily with longer time since transplant, reaching 15.7% of deaths (810 per 100,000 person-years) 10+ years post-transplant. Comparison of cancer-attributable mortality rates with specified causes of death indicated that some deaths recorded as other causes might instead be caused by cancer or its treatment.
Conclusions:
Cancer is a substantial cause of mortality among solid organ transplant recipients, with major contributions from lung cancer and NHL. Cancer-attributable mortality increases with age and time since transplant, so cancer deaths will become an increasing burden as recipients live longer.
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Pubmed ID:31034602
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Pubmed Central ID:PMC6625902
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