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Smoking is a risk factor for development of adult T-cell leukemia/lymphoma in Japanese human T-cell leukemia virus type-1 carriers

机译:吸烟是日本人T细胞白血病病毒1型携带者成人T细胞白血病/淋巴瘤发生的危险因素

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摘要

Background and purpose: Adult T-cell leukemia/lymphoma (ATLL) is an aggressive hematological malignancy caused by human T-cell leukemia virus type-1 (HTLV-1); no effective methods have yet been identified to prevent development of ATLL in carriers of HTLV-1. This study investigated the association between cigarette smoking and the risk of ATLL development among Japanese carriers of HTLV-1. Methods: This study examined the association between smoking and development of ATLL in a cohort of 1,332 Japanese HTLV-1 carriers aged 40–69 years free of ATLL at baseline from two different HTLV-1-endemic areas of Japan. Cox proportional hazards models adjusted for sex, geographic area, age at baseline, and alcohol drinking were used to estimate the effect of cigarette smoking on ATLL development. Results: Between 1993 and 2012, 25 new ATLL cases were identified among these subjects. The overall crude incidence rate for ATLL was 1.08 per 1,000 person-years among HTLV-1 carriers and was higher among male carriers than among female carriers (2.21 vs. 0.74). The risk of ATLL development increased significantly with increasing numbers of cigarettes smoked per day (hazard ratio for every increment of 20 cigarettes, 2.03; 95 % confidence interval (CI) 1.13–3.66 overall, 2.07 (95 % CI 1.13–3.73) in male carriers). Conclusions: Cigarette smoking may influence ATLL development among HTLV-1 carriers in Japan.
机译:背景与目的:成人T细胞白血病/淋巴瘤(ATLL)是一种由人T细胞白血病病毒1型(HTLV-1)引起的侵袭性血液恶性肿瘤。尚未发现有效的方法来预防HTLV-1携带者中ATLL的发展。这项研究调查了吸烟与日本HTLV-1携带者ATLL发生风险之间的关联。方法:本研究在来自日本两个不同的HTLV-1流行地区的1,332名年龄在40-69岁的日本HTLV-1携带者中,基线时无ATLL,研究了吸烟与ATLL的发展之间的关联。使用Cox比例风险模型对性别,地理区域,基线年龄和饮酒进行了调整,以评估吸烟对ATLL发生的影响。结果:1993年至2012年,在这些受试者中鉴定出25例新的ATLL病例。在HTLV-1携带者中,ATLL的总体原油发生率为每1000人年1.08,而在男性携带者中,女性携带者更高(2.21对0.74)。随着每日吸烟量的增加,ATLL发生的风险显着增加(每增加20支香烟的危险比,2.03; 95%的置信区间(CI)1.13–3.66,男性2.07(95%的CI 1.13–3.73)运营商)。结论:吸烟可能会影响日本HTLV-1携带者的ATLL发育。

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