[Prevalence and influencing factors of clinical obesity and preclinical obesity among rural adults].

Objective: To investigate the prevalence and influencing factors of clinical obesity and preclinical obesity in rural adults according to the diagnostic principles of clinical obesity proposed by the Lancet Diabetes & Endocrinology Commission. Methods: Data were obtained from the Henan rural cohort. Clinical obesity and preclinical obesity were diagnosed through questionnaires, physical examination, and laboratory tests. Descriptive analyses were performed using the t-test and χ2 test, and influencing factors were analyzed using a multivariate logistic regression model. Results: A total of 28 104 participants were included. The crude prevalence rates of clinical obesity and preclinical obesity were 49.03% and 19.44%, and the age-standardized prevalence rates were 36.88% and 20.33% respectively. Among them, the crude prevalence rates of men (46.41% and 13.27%) were lower than those of women (50.59% and 23.13%). With increasing age, the age-standardized prevalence of clinical obesity in the total population showed an upward trend (trend for P<0.001), and the age-standardized prevalence of preclinical obesity was highest at the age of 40-49 years, then showing a downward trend (trend for P=0.017). Multivariate analysis showed that gender, age, educational level, marital status, smoking status, drinking status, high-fat diet, and physical activity were the influencing factors of clinical obesity and preclinical obesity. Conclusions: The prevalence of clinical obesity among rural adults was relatively high and higher than that of preclinical obesity. Measures should be taken to address modifiable factors to reduce the risk of clinical obesity.