Karnofsky performance score in acute renal failure as a predictor of short-term survival
Background: Karnofsky Performance Scale Index (KPS) is a measure of functional status that allows patients to be classified according to their functional impairment. We aim to assess if the prior KPS may predict the risk of death among patients with acute renal failure (ARF). Methods: A cohort of...
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Published in | Nephrology (Carlton, Vic.) Vol. 12; no. 6; pp. 533 - 538 |
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Main Authors | , , , , |
Format | Journal Article |
Language | English |
Published |
Melbourne, Australia
Blackwell Publishing Asia
01.12.2007
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Subjects | |
Online Access | Get full text |
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Summary: | Background: Karnofsky Performance Scale Index (KPS) is a measure of functional status that allows patients to be classified according to their functional impairment. We aim to assess if the prior KPS may predict the risk of death among patients with acute renal failure (ARF).
Methods: A cohort of 668 consecutive patients who had been admitted in an university‐affiliated hospital between June 2000 and June 2006, and had been diagnosed with ARF, were studied. Three hundred and eighty‐six patients with ARF who matched at least one of the RIFLE (Risk, Injury, Failure, Loss and End stage) criteria on increased serum creatinine were included for subsequent analysis. The group was divided into four categories, according to different Karnofsky scores measured by a nephrologist (≥80, 70, 60 and ≤50). We used an adjusted logistic regression model to assess the relationship between the Karnofky score and mortality.
Results: A significant risk of in‐hospital mortality within 90 days was observed when the other groups were compared with the ≥80 Karnofsky group. Adjusted odds ratios were 8.87 (95% confidence interval (CI) 3.03–25.99), 6.78 (95% CI 2.61–17.58) and 2.83 (95% CI 1.04–7.68), for Karnofsky groups of ≤50, 60 and 70, respectively. An adjusted odds ratio of 1.75 (95% CI 1.37–2.23) was observed for every 10 point decrease in KPS score.
Conclusion: Functional status as indicated by the KPS is an independent predictor of death in this cohort of patients with ARF. Patients who presented lower scores had increased mortality rates. |
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Bibliography: | ArticleID:NEP880 istex:E6E77AD74939ACF3A73B83131FAB59D2DF19AF06 ark:/67375/WNG-N30M2PWZ-R The work was performed at the Clinica Universitaria de Navarra (University Hospital of Navarra). ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23 |
ISSN: | 1320-5358 1440-1797 |
DOI: | 10.1111/j.1440-1797.2007.00880.x |