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匿名使用者 發問時間: 社會與文化語言 · 2 0 年前

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Considering study size , design , and likely quality of RF assessment , the most informative studies (Groves et al. 2002; Milham 1988 ; Morgan et al . 2000) provide little evidence of an association with either brain tumors or leukemia. The one possible exception was an increased risk of nonlymphocytic leukemia in radar-exposed navy veterans (Groves et al.2002) restricted to only one of three highly exposed occupations (aviation electronics technicians ), but this finding was divergent from that of an earlier study of U.S. naval personnel (Garland et al.1990) .Two U.S. case-control studies of brain tumor etiology have shown elevated odds ratios (ORs) of around 1.5 in relation to jobs believed to have RF exposure . However, the study by Thomas et al.(1987) was based on interviews with relatives of dead cases and hence was unable to identify exposure with much certainty . The other study (Grayson 1996) assessed exposures by a job-exposure matrix based on historical reports of incidents of exposure above permissible limits (10 mW/c㎡).No clear or consistent trend was found in risk of brain tumor in relation to exposure score .A widely cited study of U.S. embassy staff in Moscow and their dependents with possible RF exposure was only published as a précis by a third party (Goldsmith 1995 ); this leaves the study methods unclear ,but few brain tumors or leukemia occurred, and half were in dependents who lived outside the embassy .

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TO:(勿敲)白水屋

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  • 2 0 年前
    最佳解答

    考慮研究大小、設計, 和RF 評估的可能的質量, 最情報的研究(Groves 等2002 年; Milham 1988 年; 摩根・等。2000) 提供一點協會的證據以或腦瘤或白血病。□一可能的例外是nonlymphocytic 白血病一種增加的風險在雷達被暴露的海軍退伍軍人(樹叢和al.2002) 被限於只三種高度被暴露的職業(航空電子技術員的當中一個), 但這發現是分歧從那腦瘤原因論的海軍人員美國的一項更加早期的研究(詩歌選和al.1990) Two 美國情形控制研究顯示了被舉起的可能性比率(ORs) 大約1.5 關於工作應該有RF 曝光。但是, 研究由托馬斯和al.(1987) 根據與死的案件的親戚的採訪和因此無法辨認曝光有把握。其他研究(Grayson 1996) 估計了曝光由工作曝光矩陣根據曝光事件歷史報告在可允許極限(10 mW/c?).No 清楚或一致的趨向之上被發現了在腦瘤風險關於美國使館職員的曝光比分A 廣泛被援引的研究在莫斯科並且他們的受撫養者以可能的RF 曝光由第三方(冶金匠1995) 只出版了當pr3ecis; 這留下研究方法不明, 但少量腦瘤或白血病發生了, 並且一半是在居住在使館之外的受撫養者。

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