Full
Outline
To analyse the epidemiological trends, influencing factors, and dynamic changes of central obesity among adults in Guizhou Province from 2004 to 2023, providing evidence for formulating targeted prevention and control strategies.
Data from the China Health and Nutrition Survey (CHNS) were selected for Guizhou Province in 2004, 2006, 2009, 2011, 2015, 2018, and 2023. A stratified cluster random sampling method was employed, selecting adult residents aged≥18 years as study subjects. Central obesity was defined according to the WS/T 428-2013 standard (waist circumference ≥90 cm for males, ≥85 cm for females). The χ2 test was employed to compare rates between groups, while the Cochran-Armitage trend test analysed trends in central obesity rates across years and age groups. To examine changes in influencing factors, the study period has been divided into an early phase (2004-2011) and a recent phase (2015—2023), and multivariate logistic regression models have been constructed for each phase for comparison.
A total of 6 101 survey subjects was included. The central obesity rate increased from 16.55% in 2004 to 39.15% in 2023（χ2=237.663, P<0.001). Period-specific multivariate logistic regression analysis revealed significant changes in the influencing factors: 2004-2011 (OR=1.46, 95%CI:1.23-1.74), whereas excessive cereal and tuber consumption became the dominant risk factor during 2015-2023 (OR=1.23, 95%CI:1.01-1.49) and alcohol consumption (OR=1.39, 95%CI: 1.10-1.77) became predominant risk factors. Concurrently, the risk among individuals with lower educational attainment increased significantly in recent years (OR=1.56, 95%CI:1.06-2.30).
Between 2004 and 2023, the prevalence of central obesity among adults in Guizhou Province rose sharply, with the primary risk factors shifting from excessive consumption of animal-based foods in the early years to an unbalanced staple food diet, alcohol consumption and low educational attainment in recent years. Prevention and control strategies need to be dynamically adjusted; in the immediate term, the focus should be on optimising the composition of staple foods, restricting alcohol consumption and strengthening health interventions targeting people with low educational attainment.
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| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 Genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
|---|---|---|---|---|---|---|
| 鹅膏菌科Amanitaceae | 2 | 11 | 5.26 | 鹅膏菌属 Amanita | 10 | 4.78 |
| 小菇科 Mycenaceae | 2 | 12 | 5.74 | 丝盖伞属 Inocybe | 5 | 2.39 |
| 多孔菌科 Polyporaceae | 8 | 14 | 6.70 | 蜡蘑属 Laccaria | 5 | 2.39 |
| 红菇科 Russulaceae | 3 | 23 | 11.00 | 小皮伞属 Marasmius | 6 | 2.87 |
| 小菇属 Mycena | 11 | 5.26 | ||||
| 光柄菇属 Pluteus | 5 | 2.39 | ||||
| 红菇属 Russula | 17 | 8.13 | ||||
| 栓菌属 Trametes | 5 | 2.39 |
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