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- Title
Elevated relative mortality risk with mild-to-moderate chronic kidney disease decreases with age.
- Authors
Neil T. Raymond; Daniel Zehnder; Stephen C. H. Smith; Julie A. Stinson; Hendrik Lehnert; Robert M. Higgins
- Abstract
Background. Renal disease is common in the general population and whilst few people progress to end-stage renal failure, mortality is increased. The aim of this study was to examine all-cause mortality risk in relation to chronic kidney disease (CKD) stages defined by estimated glomerular filtration rate (eGFR). Methods. Data were extracted from a computerized central laboratory system for a defined geographical area over a 3-year study period. The eGFR was calculated using the four-variable Modification of Diet in Renal Disease (MDRD) formula and aligned to the MDRD laboratory. Average annual mortality and relative risk (RR) of all-cause mortality was determined and compared for defined age and CKD bands. Results. 106 366 participants (55.5% female; 85% White, 13% South Asian, 2% Black and others) were eligible and studied, representing 49% of the Coventry adult population. 12 540 (12%) of the sample had some evidence of decreased kidney function, with an eGFR Conclusions. CKD prevalence increased with age and absolute and RR of mortality increased with progression of CKD. People aged over 75 years, with mild-to-moderate renal disease, representing 41% of this age group, have no increased RR of mortality. Further study of CKD and mortality, particularly progression over time and with respect to age is needed.
- Subjects
MORTALITY; KIDNEY diseases; DIET in disease; POPULATION
- Publication
Nephrology Dialysis Transplantation, 2007, Vol 22, Issue 11, p3214
- ISSN
0931-0509
- Publication type
Article
- DOI
10.1093/ndt/gfm396