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Chronic kidney disease in adults aged 18 years and older in Chile: findings from the cross-sectional Chilean National Health Surveys 2009–2010 and 2016–2017
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  • Published on:
    Prevalence of Chronic kidney disease in Chile. What are the challenges?
    • CARLOS A ZUNIGA-SM, Professor Internal Medicine and Nephrology Fac. Medicina. Universidad Catolica Santisima Concepcion - Chile
    • Other Contributors:
      • Manuel Espinoza, Profesor Asociado, Departamento de Salud Pública

    To the editor:
    In a recently published article Walbaum et al. reported revisited estimates of the prevalence of chronic kidney disease (CKD) among Chilean adults and examine their association with sociodemographic characteristics, health behaviors and comorbidities (1). This study was an analysis of two periods, using nationally representative Chilean Health Surveys (CHS) performed in 2010 (CHS-2010) and 2017 (CHS-2017), respectively. They showed that the prevalence of reduced kidney function has not increased significantly between both periods; 2.5% (1.9% to 3.2%) and 3.2% (2.6% to 4.0%) respectively. However, the authors highlight that 15.4% of adults aged 40+ years in 2017 had CKD (stages 1–5). The distribution by CKD stage in this population was: 9.6% had increased albuminuria but mildly decreased, normal or high eGFR (CKD stages 1 and 2) and that 5.8% had CKD stages 3a – 5.
    These findings are concordant to those reported by Zuniga et al. in 2011 on the prevalence of CKD in the adult population served in primary health centers (PHCs) in Chile (2). In that study, 27,894 clinical records of adults aged 55 ± 18 years (66% females), consulting in outpatient clinics and in whom serum creatinine was measured to calculate the estimated glomerular filtration rate (eGFR / MDRD-4), with or without assessment of urine albumin levels (albumin to creatinine ratio, ACR), were reviewed. The global prevalence of CKD was 12.1% (3,371 patients), significantly higher in women...

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    Conflict of Interest:
    None declared.