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- Title
Problems with analyses and interpretation of data in "use of the KDQOL-36™ for assessment of health-related quality of life among dialysis patients in the United States".
- Authors
Hays, Ron D.; Peipert, John D.; Kallich, Joel D.
- Abstract
A recent article in the journal reported analyses of KDQOL-36™ survey data collected from 240,343 adults (330,412 surveys) dialyzed at a large dialysis organization in the United States during 2014-2016. The authors concluded that the KDQOL-36™ Symptoms and Problems of Kidney Disease scale had the highest mean score of the KDQOL-36™ scales. We note that this inference was erroneous because the scales are not scored on the same numeric scale. In addition, the authors found that responses to a general health perceptions item ("In general, would you say your health is excellent, very good, good, fair, or poor") was not significantly associated with any of the 5 KDQOL-36 scale scores. In contrast, we find significant and noteworthy correlations in two other datasets. These analytic issues call into question the accuracy and validity of the conclusions of this paper.
- Subjects
UNITED States; QUALITY of life; HEMODIALYSIS patients; DATA analysis; KIDNEY diseases
- Publication
BMC Nephrology, 2019, Vol 20, Issue 1, pN.PAG
- ISSN
1471-2369
- Publication type
journal article
- DOI
10.1186/s12882-019-1609-2