Pulmonary Function and Its Influencing Factors in Rural Elderly Adults in Guangzhou
10.13471/j.cnki.j.sun.yat-sen.univ（med.sci）.2025.0515
- VernacularTitle:广州乡村老年人肺功能现状及影响因素
- Author:
Weifeng ZENG
1
;
Bingqi YE
1
;
Jialu YANG
1
;
Jianhua LI
2
;
Qianling XIONG
1
;
Lele YUAN
1
;
Min XIA
1
Author Information
1. Guangdong Provincial Key Laboratory of Food， Nutrition and Health， School of Public Health， Sun Yat-sen University， Guangzhou 510080， China
2. Guangzhou Conghua District Health Bureau， Guangzhou 510900， China
- Publication Type:Journal Article
- Keywords:
pulmonary ventilation;
influencing factors;
aged people;
rural areas;
cross-sectional study
- From:
Journal of Sun Yat-sen University(Medical Sciences)
2025;46(5):851-860
- CountryChina
- Language:Chinese
-
Abstract:
ObjectiveTo investigate pulmonary function levels and associated influencing factors among rural elderly in Guangzhou， to identify high-risk populations for poor pulmonary function， and to reveal the relationship between the influencing factors of pulmonary function. MethodsWe recruited 1 500 residents aged 60 to 94 years from rural area of Conghua District， Guangzhou City using convenience sampling in 2023. Data on demographics， body measurements， medical history and lifestyle were collected via face-to-face questionnaires and physical examination. Meanwhile， expiratory function parameters including forced expiratory volume in one second （FEV1）， forced vital capacity （FVC）， FEV1/FVC， and the prevalence of airflow obstruction （AFO） were assessed using a portable spirometer. Age and sex distribution of pulmonary function in older adults at 5-year intervals was reported， and risk factors of AFO using multifactorial logistic regression models were analyzed. Furthermore， path analysis was further employed to explore the role of lifestyle in the association between other influencing factors and lung function. ResultsAmong the 1 500 participants， the median age was 71 years （67-75）， and 44.2% were male. Subjects identified as AFOs were generally older， more likely male， less educated， and had lower rates of moderate to vigorous physical activity （＜1 time/week） and lower lean body mass. Mean FEV1/FVC ratio was （82.0±16.4） %. FEV1/FVC was （79.80±17.58） % in men and （83.66±15.22） % in women. Older age， lower education， male sex and leanness were negatively associated with all pulmonary function outcomes （all P values＜0.05）. Path analysis identified that age， gender， marital status， occupation and income may influence pulmonary function indirectly through lifestyle. ConclusionRural elderly in Guangzhou exhibited lower pulmonary function levels， and male sex， non-married status， advanced age， lower education， smoking habits， insufficient engagement in moderate to vigorous physical activity， and lean body type were all associated with worse pulmonary function.
