在瑞典宠爱养鸟与肺癌危险性的探讨

PET BRIDS AND THE RISK OF LUNG CANCER IN SWEDEN

目的：调查瑞典养鸟与肺癌危险性的联系。研究设计：肺癌病例与社区对照组的病例对照研究，由两位经过特殊训练的护士进行调查。调查地区：瑞典西南地区三所医院。病例：全部为新近诊断的肺癌病例，年龄最大７５岁，居住于Ｇｏｔｈｅｎｂｕｒｇ，Ｂｏｈｕｓ及Ａｌｖｓｂｏｒｇ三个城市的２６个社区。对照组配对条件：从人口登记资料中选出同性别、年龄相近和同一居住地点的居民。养鸟情况：肺癌病例３８０人（男２５２，女１２８），对照组６９６人（男４３３，女２６３）。探讨的主要问题：探讨养鸟与否和养鸟年限与肺癌的ＯＲ值。结果：家中曾养鸟和未养鸟的调整ＯＲ值男性为０．９４（９５％ＣＩ＝０．６４～１．３９），女性为１．１０（９５％ＣＩ＝０．６４～１．９０）。未见到养鸟年限增加有肺癌危险性增加的倾向。结论：瑞典家中养鸟对男。

To investigate the association between bird keeping and the risk of lung cancer in Sweden, a case control study was carried out based on lung cancer cases and community controls.Subjects were newly diagnosed lung cancer cases, 75 years of age or younger and of Scandinavian birth,who are resided in one of 26 municipalities in Gothenburg and Bohus county or Alvsborg county. Controls consisted of subjects matched on county of residence and gender and who were closest to the case on date of birth they were selected from population registries.Information on pet birds was obtained from 380 lung cancer cases (252 men,128 women)and 696 controls (433 men and 263 women).The adjusted odds ratio to ever vs never exposed to pet birds at home was 0.94 (95% CI:0.64～1.39)for males and 1.10(95% CI:0.64～1.90)for females.No evidence for a trend of increased lung cancer risk in Sweden was observed with duration of pet bird ownership.