Prevalence of metabolic syndrome risk factors and their relationships with renal function in Chinese centenarians

As the first time, this study was to investigate the prevalence of metabolic syndrome (MetS) risk factors and explore their relationships with renal function in Chinese centenarians. China Hainan Centenarian Cohort Study was performed in 18 cities and counties of Hainan Province. Home interview, physical examination and blood analysis were performed in 874 centenarians following standard procedures. Prevalence of MetS was 15.6% (136 centenarians). There were 229 centenarians with abdominal obesity (26.2%), 645 centenarians (73.8%) with hypertension, 349 centenarians with dyslipidemia (39.9%) and 92 centenarians with diabetes mellitus (10.5%). In multivariate linear regression, age, smoking, waist circumstance (WC), systolic blood pressure (SBP) and triglyceride levels were inversely and diastolic blood pressure (DBP) levels were positively associated with glomerular filtration rate levels (P < 0.05 for all). This study reported low prevalence of MetS risk factors and demonstrated that age, smoking, abdominal obesity (WC), hypertension (SBP and DBP) and triglyceride levels were independently associated with renal function in Chinese centenarians. This study provided reliable data about Chinese centenarians, analyzed significant relationships between Mets risk factors and renal function, and explained possible reason (low prevalence of MetS and its risk factors) and mechanism (interrelationship of age, Mets risk factors with renal function) of longevity.