Abstract
Objective: The present study aimed to estimate prevalence of hypertension among adults in rural remote areas of Xinjiang, China and evaluate the associated factors of hypertension. Methods: The survey was based on questionnaire interviews and clinical measurements of 11,340 individuals (≥18 years old), and was conducted during 2009–2010 via a stratified cluster random sampling method in the remote rural areas of Xinjiang, about 4407 km away from the capital Beijing. Hypertension was defined according to WHO/ISH criteria. Results: Systolic blood pressure (SBP) and diastolic blood pressure (DBP) of the population were (126.3 ± 21.4) and (80.9 ± 13.4) mmHg. Compared with Han nationality subjects, SBP and DBP of Kazakh nationality subjects were significantly high (p < 0.05), while the SBP and DBP of Uyghur subjects were significantly low (Kazakh: (128.7 ± 23.9) and (83.0 ± 14.6) mmHg, Uyghur: (123.6 ± 19.3) and (77.4 ± 12.7) mmHg, Han: (126.5 ± 20.5) and (82.6 ± 11.9) mmHg, p < 0.05). Prevalence of hypertension of the population was 32.1%, and was greater among Kazakhs and lower among Uyghur than Han (Kazakh: 36.9%, Uyghur: 26.1%, Han: 33.7%, p < 0.05). The age-standardized prevalence of hypertension was 30.2%, and was greater among Kazakhs while lower among Uyghurs than Han subjects (Kazakh: 37.0%, Uyghur: 26.0%, Han: 33.8%, p < 0.05, p < 0.05). Multivariate logistic regression analyses showed Gender (OR = 1.324), age (OR = 2.098, 3.681, 6.794, 9.473, 14.646), nationality (OR = 1.541), occupation (OR = 1.659, 1.576), education (OR = 1.260), BMI (OR = 1.842), WC (OR = 1.585), WHR (OR = 1.188), WHR (OR = 1.188), diabetes (OR = 1.879), hypertriglyceridemia (OR = 1.361), hypercholesterolemia (OR = 1.131) and high blood low density lipoprotein cholesterol (LDL-C) (OR = 1.956) were all positively correlated with hypertension, while low blood high density lipoprotein cholesterol (HDL-C) (OR = 0.765) was negatively correlated with hypertension. Conclusions: Prevalence of hypertension among adults in remote rural areas of Xinjiang was higher than the national average. Prevalence of hypertension was greater among Kazakhs and lower among Uyghurs than Han nationals, thus indicating significant differences between regions and nationalities. Gender, age, nation, occupation, education, overweight or obesity, abdominal obesity, diabetes, hyperlipidemia, hypercholesterolemia, high LDL-C were positively correlated with hypertension, low HDL-C was negatively correlated with hypertension.
Highlights
Hypertension is the most common chronic disease, and the most important risk factor of cardiovascular diseases
We interviewed permanent residents of the Han, Uyghur and Kazakh nationalities aged 18 and above for investigation
This survey found that the standardized prevalence of hypertension in remote rural areas of Xinjiang was 30.2%, and 37.0%, 26.0% and 27.8% in the Kazakh, Uyghur and Han population, respectively, which was significantly higher than the results of the China National Nutrition and Health Survey
Summary
Hypertension is the most common chronic disease, and the most important risk factor of cardiovascular diseases. In China, with a population of 1.34 billion, about 200 million people suffer from hypertension [3]. A vast and multi-ethnic province, is located on the northwest edge of China; its prevalence of hypertension ranks at the forefront of China due to its geographical remoteness, a relatively backward economy and low education level. The rates of awareness, treatment and control of hypertension are very low, and hypertension in remote rural areas of Xinjiang was even more worrying [4,5,6]. Despite China’s economic growth, social progress, improved living standards and accelerated urbanization, especially in economically backward areas, such as Xinjiang, there have been only a few epidemiological investigations of hypertension among urban populations. The main ethnic groups in Xinjiang are the Uygur, Kazak and
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