Objective: To describe the characteristics of habitual snoring among adults from 10 regions engaged in the China Kadoorie Biobank (CKB) study. Methods: The baseline survey of CKB was conducted from 2004 to 2008. Data was collected regarding the information on socio- demographic characteristics, lifestyle, sleeping habits, and results from the physical examination of the participants. Logistic regression models were used to compare the regional differences and to estimate the associations of other baseline characteristics on snoring habit. Results: A total of 512 713 participants were included in this study. The overall prevalence of habitual snoring was 21.2%, higher among men, in south regions and urban areas, but no difference observed among people with different socioeconomic status after adjusting for age, regions, BMI, waist circumference or lifestyle factors. Results showed that the prevalence of habitual snoring under the multivariable adjusted model increased among current and ever smokers, also among current and ever alcohol consumers. The risk of habitual snoring was increased by 19% per 1 kg/m(2) and 6% per 1 cm increment in BMI or waist circumference, respectively. Among participants with similar BMI, central obese individuals were more likely to be habitual snorers. For individuals with similar waist circumference, the prevalence of habitual snoring was higher among those with higher BMI. Conclusion: The prevalence of habitual snoring varied across regions. Substantial differences in habitual snoring were also seen among people with different lifestyles and body sizes.
目的： 描述中国慢性病前瞻性研究10个项目地区成年人习惯性打鼾的地区和人群分布特征。 方法： 本研究于2004－2008年开展基线调查，收集了人口学特征、行为生活方式、睡眠情况、体格检查指标等信息。采用logistic回归比较不同地区、不同特征人群习惯性打鼾的差异并分析打鼾的相关因素。 结果： 研究共纳入512 713名研究对象，习惯性打鼾标化后报告率为21.2%，男性（27.0%）高于女性（15.3%），南方地区高于北方地区（男性：南方31.5%，北方24.7%；女性：南方18.0%，北方16.4%），城市高于农村（男性：城市32.1%，农村26.1%；女性：城市18.5%，农村16.4%）。调整年龄、项目地区、BMI、腰围和生活方式因素后，不同社会经济状态人群的习惯性打鼾率无明显差异，男性、吸烟和既往吸烟者、饮酒和既往饮酒者中习惯性打鼾率较高。BMI每增加1 kg/m(2)，腰围每增加1 cm，习惯性打鼾风险分别增加19%和6%（BMI：P<0.001；腰围：P<0.001）。BMI相近的人群中，中心性肥胖者中习惯性打鼾率高于非中心性肥胖者；腰围相近的人群中，全身性肥胖/超重者习惯性打鼾率高于正常BMI者。 结论： 我国30~79岁成年人习惯性打鼾存在明显的地区和人群差异。.
Keywords: Adult; Habitual snoring; Population difference; Regional difference.