Prevalence and influencing factors of preserved ratio impaired spirometry in adults aged 40 years and above in 10 areas in China
10.3760/cma.j.cn112338-20241127-00754
- VernacularTitle:中国10个地区40岁及以上成年人保留比值受损肺功能的患病率及影响因素分析
- Author:
Yongbing LAN
1
;
Xinyi ZHANG
;
Dingzhen WU
;
Jun LYU
;
Dianjianyi SUN
;
Pei PEI
;
Huaidong DU
;
Junshi CHEN
;
Zhengming CHEN
;
Liming LI
;
Canqing YU
Author Information
1. 北京大学公共卫生学院流行病与卫生统计学系，北京 100191
- Publication Type:Journal Article
- Keywords:
Preserved ratio impaired spirometry;
Prevalence;
Epidemiological distribution;
Influencing factor
- From:
Chinese Journal of Epidemiology
2025;46(6):929-934
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To describe the prevalence of preserved ratio impaired spirometry (PRISm) in participants from the China Kadoorie Biobank (CKB) and explore the influencing factors.Methods:The CKB project conducted the baseline survey, the first and the second resurvey in 2004-2008, 2008, and 2013-2014, respectively. Based on the lung function tests, the participants were categorized into three groups: regular, PRISm, and airflow obstruction. The prevalence of PRISm was reported by gender, age, and region at the baseline survey. The secular trend in the prevalence of PRISm was described during the three surveys. Finally, we used the multiple logistic regression model to examine the factors related to PRISm in the baseline survey.Results:After standardization for gender, age, and region according to the sixth national census data in 2010, the overall prevalence of PRISm and airflow obstruction among the 434 760 participants at baseline was 24.8% and 6.1%, respectively. The prevalence of PRISm was higher in rural (25.4%) than that in urban areas (24.3%). Of the 10 study regions, Gansu had the highest prevalence of PRISm (56.0%), while Henan had the lowest (15.4%). After standardization for gender, age, and region according to the baseline population, the prevalence of PRISm decreased from 24.9% at baseline to 15.7% in the second resurvey, and the prevalence of airflow obstruction increased from 5.9% to 21.4%. Unmarried status, current smoking, using solid fuels for cooking, low body weight, being overweight, obesity, and central obesity were associated with an increased risk of PRISm. In contrast, higher education attainments, increased household income, and maintaining a specific degree of physical activity were associated with a reduced risk of PRISm.Conclusions:The prevalence of PRISm was high in adults aged 40 years and above in China, and it varied by sociodemographic and lifestyle factors.
