Objective: To explore the gene-lifestyle interaction on coronary heart disease (CHD) in adult twins of China. Methods: Participants were selected from twin pairs registered in the Chinese National Twin Registry (CNTR). Univariate interaction model was used to estimate the interaction, via exploring the moderation effect of lifestyle on the genetic variance of CHD. Results: A total of 20 477 same-sex twin pairs aged ≥25 years were recruited, including 395 CHD cases, and 66 twin pairs both had CHD. After adjustment for age and sex, no moderation effects of lifestyles, including current smoking, current drinking, physical activity, intake of vegetable and fruit, on the genetic variance of CHD were found (P>0.05), suggesting no significant interactions. Conclusion: There was no evidence suggesting statistically significant gene-lifestyle interaction on CHD in adult twins of China.
目的： 分析中国成年双生子人群的冠心病遗传-生活方式交互作用。 方法： 利用中国双生子登记系统募集的研究对象，构建单变量交互作用模型，通过分析生活方式对冠心病遗传效应的效应修饰作用，探索冠心病的遗传-生活方式交互作用。 结果： 本研究共纳入20 477对≥25岁的同性别双生子，含395例冠心病患者，其中66对双生子均患冠心病。调整年龄和性别后，当前吸烟、当前饮酒、体力活动和蔬果摄入等生活方式对冠心病的遗传效应均没有修饰作用（均P>0.05）。 结论： 在本研究的中国成年双生子人群中未发现冠心病的遗传-生活方式交互作用。.