ObjectivesTo evaluate the prevalence and determinants of metabolic syndrome (MetS) among adults in a rural area of Northwest China.MethodsA population-based cross-sectional study was conducted in 2010 among adults aged 18 to 80 years in rural areas of Hanzhong, in Northwest China. Interview, physical and clinical examinations, and fasting blood glucose and lipid measurements were completed for 2990 adults. The definitions of MetS proposed by the Third Report of the National Cholesterol Education Program Expert Panel (Adults Treatment Panel III, ATP III) and the International Diabetes Federation (IDF), and the modified ATP III definition for Asian population were used and compared. Proportions were adjusted for age and sex.ResultsThe prevalence of MetS was 7.9%, 10.8% and 15.1% according to ATP III, IDF and modified ATP III criteria, respectively. Agreement between ATP III and IDF criteria and that between ATP III and modified ATP III criteria were moderate (Kappa = 0.52 and 0.64, respectively), whereas agreement between IDF and modified ATP III criteria was good (Kappa = 0.83). The prevalence of MetS increased with age, and was higher in women than in men (10.4% versus 5.4%, 13.6% versus 8.1% and 17.4% versus 12.8%, according to ATP III, IDF and modified ATP III criteria, respectively). The most common MetS component was high blood pressure. Having family history of hypertension, lack of physical activity, high economical level, overweight and obesity were positively associated with MetS.ConclusionsMetS is prevalent among rural adults in Northwest China and high blood pressure is the most common MetS component. Prevention and treatment of hypertension and MetS should be a public health priority to reduce cardiovascular diseases in rural areas of Northwest China. More attention should be given to the elderly, women, people with family history of hypertension and obese people who are at high risk of MetS.
Background Although high BP is one of the most important factors affecting renal function, whether longitudinal BP trajectories in early life course are associated with renal function damage in later life is unclear.Methods To investigate the correlation between BP trajectories from childhood to adulthood and renal function in middle age, we used group-based trajectory models to identify BP trajectories in 2430 individuals (aged 6-15 years old at baseline) participating in the ongoing Hanzhong Adolescent Hypertension Cohort. We tested the association between these trajectories and subclinical renal damage in middle age, adjusting for several covariates. ResultsWe identified four distinct systolic BP trajectories among 2430 subjects: low stable, moderate stable, high stable, and moderate increasing on the basis of systolic BP levels at baseline and during the 30-year follow-up period. The urinary albumin-to-creatinine ratio (uACR) was higher in moderate stable, high stable, and moderate increasing groups compared with the low stable group. A total of 228 individuals had subclinical renal disease by 2017. Compared with the low stable trajectory group, the other groups had increasingly greater odds of experiencing subclinical renal disease in middle age. These associations were not altered after adjustment for other covariates, except for in the moderate stable group. Analyzed results were similar for the mean arterial pressure and diastolic BP trajectory groups.Conclusions Higher BP trajectories were correlated with higher of uACR levels and risk of subclinical renal disease in middle age. Identifying long-term BP trajectories from early age may assist in predicting individuals' renal function in later life.
Higher SBP in children and adolescents, family history of hypertension, and male sex may increase the risk of developing long-term arterial stiffness.
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