Abstract
ObjectiveTo investigate the prevalence of general and abdominal obesity and associated factors in Bouyei and Han peoples.DesignA cross-sectional study was carried out in Guizhou province, southwest China in 2012, with multi-stage sampling to enroll 4551 participants aged 20 to 80 years. General and abdominal obesity were defined by World Health Organization (WHO) for Chinese. A design-based analysis was performed to evaluate prevalence of obesity and its related factors.ResultsBouyei people had a significantly lower prevalence of general obesity (4.8% vs. 10.9%, p < 0.05) and abdominal obesity (13.6% vs. 26.8%, p < 0.05) than that in Han people. Prevalence of obesity increased with age until middle-age period and declined thereafter. Men aged 40–49 years group and women aged 50–59 years group have the highest prevalence of general obesity. Prevalence of abdominal obesity was higher than that of general obesity. Middle-age, Higher income, Han people were significantly associated with an increased risk of General/abdominal obesity.ConclusionsBouyei people had a lower prevalence of general and abdominal obesity than the Han people. Etiological studies should be conducted to determine underlying genetic factors and dietary factors.
Highlights
As obesity has become a global epidemic and is closely associated with a number of chronic diseases such as type 2 diabetes, hypertension, coronary artery disease and cancer, it’s considered as an important public health problem in the developed countries and in the developing countries like China
Middle-age, Higher income, Han people were significantly associated with an increased risk of General/abdominal obesity
This study firstly showed that the prevalence of obesity in Bouyei ethnic minority was lower than the majority of Han people in Guizhou of China
Summary
As obesity has become a global epidemic and is closely associated with a number of chronic diseases such as type 2 diabetes, hypertension, coronary artery disease and cancer, it’s considered as an important public health problem in the developed countries and in the developing countries like China. In China, overall prevalence of adult obesity was 2.9% in 2002 (BMI 30 kg/m2) [2], varying by regions, and by ethnic groups. Many ethnic minorities in southwest China had lower obesity prevalence than Han people [5,6,7]. Bouyei is one of the ethnic minorities in southwest China, mainly living in Guizhou and Yunnan provinces, with 2.9 million in population. Before the 1950s, Bouyei generally didn't intermarry with other ethnic groups and kept primitive lifestyles and their own language. The purpose of this study was to investigate prevalence of general and abdominal obesity and its associated factors in Bouyei and Han peoples
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