Prevalence, awareness and treatment of chronic kidney disease among middle-aged and elderly: The China Health and Retirement Longitudinal Study

Nephrology
Shengfeng WangLiming Li

Abstract

To provide reliable estimates of the prevalence, awareness, and treatment of chronic kidney disease (CKD), and their distribution and related influencing factors in middle-aged and elderly population in China. A cross-sessional survey called the China Health and Retirement Longitudinal Study (CHARLS) was conducted in 2011-2012 in Chinese people aged 45 years or older. This was to evaluate the prevalence of CKD, disease awareness compared to other chronic diseases in the population, and whether they were being treated for their CKD. Estimated GFR (eGFR) was calculated using the Chronic Kidney Disease Epidemiology Collaboration eGFR creatinine-cystatin C (eGFRcreat-cys) equation. CKD was defined as eGFR less than 60 mL/min per 1.73 m(2) . Multivariable logistic regressions were used to estimate odds ratios (ORs) for the risk factors. The overall prevalence of CKD was 11.5% (95%CI: 10.1% ∼ 12.8%). It was higher in urban than rural population (13.0% vs 10.0%, P < 0.05). Among all patients with CKD, only 8.7% were aware of the diagnosis. 4.9% of the patients were receiving treatment. The proportion of those aware of their condition and those who were treated decreased with age in both sexes. Of those aware (8.9%), 55.9% were treated...Continue Reading

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