Methods:Disease cases and smoking h

Methods:Disease cases and smoking habits were identified in 44919 twins older than 40 years from the Swedish Twin Registry.Disease was defined as self-reported chronic bronchitis or Emphysema,or recurrent cough with phlegm.Individual who has smoked 10 pack-years or more were defined as smokers.Univariate and bivariate structural equation models were used to estimate the heritability specific for chronic bronchitis and that in common with smoking.

結果 (中文) 1:

方法 ︰ 病例和吸烟习惯被确定在 44919 双胞胎老比 40 年从瑞典的双胞胎 Registry.Disease 被定义为自我报告的慢性支气管炎或肺气肿或反复咳嗽伴痰。个人有吸烟 10 包年或更多的人被定义为吸烟者。一元和二元结构方程模型用于估算特定治疗慢性支气管炎的遗传，和吸烟一样。

結果 (中文) 3:

方法：对44919例40岁以上的双胞胎年龄从瑞典双胞胎登记处发现疾病情况和吸烟习惯，定义为自报慢性支气管炎或肺气肿，或反复咳嗽痰。吸烟10包年以上者被定义为吸烟者。用单变量和双变量结构方程模型估计慢性支气管炎的遗传力，并与吸烟有关。