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1996-01-30
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Document 0606
DOCN M9610606
TI Validity of the Karnofsky Performance Status in an HIV-infected sample.
DT 9601
AU O'Dell MW; Lubeck DP; O'Driscoll P; Matsuno S; Department of Physical
Medicine and Rehabilitation, University of; Cincinnati, College of
Medicine, OH 45267-0530, USA.
SO J Acquir Immune Defic Syndr Hum Retrovirol. 1995 Nov 1;10(3):350-7.
Unique Identifier : AIDSLINE MED/96027803
AB The Karnofsky Performance Status (KPS) is the most widely used health
status measure in human immunodeficiency virus (HIV) medicine and
research. Because there are limited data on KPS metric properties in
this setting, we present evidence of the construct validity of the KPS
in a sample of HIV-infected persons using data from the AIDS
Time-Oriented Health Outcome Study (ATHOS). The sample consisted of 160
primarily white, homosexual/bisexual men with a mean age of 45 years and
a mean KPS score of 82 (range, 40-100). Ninety percent were classified
in Centers for Disease Control (CDC) clinical category B or C. Pearson's
product-moment correlations were strong between the KPS and measures of
global health status, physical disability, numbers of symptoms, CDC
clinical category, social function, days off work, and energy/fatigue (r
= 0.39-0.52, p < 0.0001). Correlations with measures of mental health
and cognition were less impressive but statistically significant.
Analysis of variance followed by Student Newman-Keuls test showed
significant differences among three KPS groupings for global health
status but not for physical disability. Regression analysis indicated
three significant variables accounting for KPS variance: visual analogue
global health status (27%), days off work (10%), and energy/fatigue
(1.7%). We conclude that the upper range of the KPS reflects global
health status better than physical performance and much better than
psychosocial constructs, in persons with HIV infection. Further research
examining the ability of the KPS to detect clinically significant change
over time is needed.
DE Adult Aged Analysis of Variance Disabled Health Status Health
Status Indicators Human HIV
Infections/CLASSIFICATION/*PHYSIOPATHOLOGY/PSYCHOLOGY *Karnofsky
Performance Status Male Middle Age Quality of Life Regression
Analysis Reproducibility of Results JOURNAL ARTICLE
SOURCE: National Library of Medicine. NOTICE: This material may be
protected by Copyright Law (Title 17, U.S.Code).