Skin cancers associated with autoimmune conditions among elderly adults |
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Authors: | E Lanoy E A Engels |
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Institution: | 1.INSERM, U943, Paris, F-75013 France;2.UPMC Univ Paris 06, UMR S943, Paris, F-75013 France;3.Division of Cancer Epidemiology and Genetics, National Cancer Institute, 6120 Executive Boulevard, Room 7076, Rockville, MD 20892, USA |
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Abstract: | Background: Immunosuppression is a risk factor for certain skin cancers. Autoimmune conditions can involve the skin, and may involve immunosuppressive therapies.Methods: We conducted a population-based case–control study among elderly US adults using Surveillance, Epidemiology, and End Results-Medicare-linked data of 44 613 skin cancer cases and 178 452 frequency-matched controls. Medicare claims identified autoimmune conditions. Adjusted odds ratios (ORs) compared prevalence in cases and controls.Results: The most frequent autoimmune condition was rheumatoid arthritis (2.29%), which was associated with slightly increased risk of Merkel cell carcinoma (N=1977; OR (95%CI): 1.39 (1.10–1.74)). Risk of cutaneous non-Hodgkin''s lymphoma (N=2652) was increased with psoriasis (OR (95%CI): 3.20 (2.62–3.92)). Risk of Kaposi''s sarcoma (N=773) was elevated with ulcerative colitis (OR (95%CI): 2.76 (1.42–5.39)), and risk of other sarcomas (N=1324) was elevated with Graves disease (2.62 (1.30–5.31)).Conclusions: These findings suggest that immune disturbances in the skin, arising from autoimmune conditions or their treatment, promote development of skin cancer. |
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Keywords: | skin neoplasm autoimmune conditions aged |
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