华南区域人群心肺适能水平及其影响因素OA

[Objective]To describe the characteristics of cardiorespiratory fitness levels in the baseline population of the South China Cohort,and to identify the potential contributing factors.[Methods]Face-to-face surveys and physical examinations were conducted to collect information on demographic characteristics,medical histories,medications,lifestyles,and physical activity conditions.After excluding individuals with missing cardiorespiratory fitness-related data and covariates including physical activity and dietary information,a total of 77 024 participants aged 25 to 85 were included.Cardiorespiratory fitness levels were evaluated using a non-exercise algorithm,and low cardiorespiratory fitness level was defined as below the lower tertile of the population distribution.Logistic regression analysis was used to examine the distribution of low cardiorespiratory fitness level,and log-binomial regression and ordered logistic regression analyses were used to analyze the associations of cardiorespiratory fitness with demographic characteristics,socioeconomic factors,lifestyle factors(including alcohol consumption and dietary diversity),and chronic diseases conditions(including diabetes,hypertension,pulmonary diseases,and cardiovascular diseases).[Results]Cardiorespiratory fitness levels showed a sufficiently normal distribution in both male and female group.We found that the proportion of low cardiorespiratory fitness level was higher among Han ethnicity,those with an educational level below 9th grade,households with an annual income of more than 100 000 Yuan,as well as those who drank alcohol at least one time per week and who exhibited low dietary diversity(all P＜0.001).Ethnicity,socioeconomic status,lifestyle factors,and chronic diseases were found to be statistically associated with cardiorespiratory fitness levels in the South China population(all P＜0.001).[Conclusion]Cardiorespiratory fitness levels varied across different population groups in South China,with ethnicity,socioeconomic status,lifestyle factors,and chronic diseases serving as key determinants.Therefore,it is recommended that the public pay attention to cardiorespiratory fitness,as strengthening population-level monitoring and interventions for cardiorespiratory fitness carries significant public health implications.