AI Article Synopsis
- The study investigates body mass index (BMI) and obesity levels among Chinese adults aged 40 and older in 2020, highlighting geographic and demographic differences.
- It uses data from a national screening program to compare BMI and obesity prevalence based on factors like sex, age, and location.
- Results indicate a significant obesity crisis, with over 91 million adults classified as obese, emphasizing the need for targeted prevention strategies.
Article Abstract
Aim: The objective of this study is to evaluate the mean body mass index (BMI), general obesity and abdominal obesity in adults aged ≥40 years residing in China in 2020, and to analyse variations in these factors across different geographic areas and subpopulations.
Methods: We utilized data from the National Stroke High-Risk Population Screening programme to calculate and compare the mean BMI and prevalence of obesity across various demographics, including sex, age, urban-rural locality, geographical region (province) and ethnicity status.
Results: In our study, we found that the standardized mean BMI level was 24.65 kg/m [95% confidence interval (CI): 24.50-22.84] in men and 24.31 kg/m (95% CI: 24.15-24.45) in women. Using the criteria from China, we found that the standardized prevalence of general obesity and abdominal obesity was 13.13% (95% CI: 13.05-13.21%) and 33.03% (95 CI: 32.92-33.14%), respectively. Our study also identified significant effects of age, sex, urban-rural locality, province and ethnicity status on the prevalence of obesity. Overall, our study estimated that in 2020, approximately 91.1 million adults aged ≥40 years in China were obese (46.5 million men and 44.6 million women), while 229.2 million adults (110.4 million men and 118.8 million women) were diagnosed with abdominal obesity.
Conclusion: Our research has revealed compelling new evidence about the obesity epidemic among Chinese adults aged ≥40 years, particularly at the provincial and ethnic levels. As a result, more targeted and effective prevention strategies should be developed to alleviate the burden of obesity.
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