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      Self-Assessed Quality of Life in Peritoneal Dialysis Patients

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          Background/Aims: Studies comparing quality of life (QOL) between peritoneal and hemodialysis patients have yielded inconsistent results. Physical (PCS) and mental component summary (MCS) scales of Short Form 36 (SF-36) health survey are highly validated measures of self-assessed QOL. We sought to evaluate these indices in PD patients: (1) as measures of QOL, (2) predictors of QOL, (3) to study change in QOL over time, and (4) to compare QOL in PD vs. hemodialysis patients. Methods: SF-36 questionnaires were administered every 3 months to patients over a 2-year period and PCS and MCS were calculated. Mean follow-up was 15.3 ± 6.6 months for PD and 14.5 ± 5.7 months for HD. Results: Average PCS in PD (31.8 ± 7.8) was lower than HD (36.9 ± 9.8) (p < 0.02), while MCS was similar in the groups (p = NS). The prevalence of depression was 26.1% in PD and 25.4% in HD patients (p = NS). Serum albumin was the only significant predictor of PCS among PD patients and explained much of the decrease in PCS in them. The number of hospitalizations and in-hospital days were significantly lower for PD compared to HD patients (p < 0.05). PCS as well as MCS remained stable in both groups throughout the observation period. Conclusion: Self-assessed physical function is diminished, while mental function is similar in PD compared to HD patients. When corrected for serum albumin, this difference is eliminated. Over time, QOL in patients treated with PD remained stable.

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          Most cited references 3

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          The Medical Outcomes Study. An application of methods for monitoring the results of medical care.

          The Medical Outcomes Study was designed to (1) determine whether variations in patient outcomes are explained by differences in system of care, clinician specialty, and clinicians' technical and interpersonal styles and (2) develop more practical tools for the routine monitoring of patient outcomes in medical practice. Outcomes included clinical end points; physical, social, and role functioning in everyday living; patients' perceptions of their general health and well-being; and satisfaction with treatment. Populations of clinicians (n = 523) were randomly sampled from different health care settings in Boston, Mass; Chicago, Ill; and Los Angeles, Calif. In the cross-sectional study, adult patients (n = 22,462) evaluated their health status and treatment. A sample of these patients (n = 2349) with diabetes, hypertension, coronary heart disease, and/or depression were selected for the longitudinal study. Their hospitalizations and other treatments were monitored and they periodically reported outcomes of care. At the beginning and end of the longitudinal study, Medical Outcomes Study staff performed physical examinations and laboratory tests. Results will be reported serially, primarily in The Journal.
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            A critical appraisal of the quality of quality-of-life measurements

             T Gill (1994)
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              Quality of life in peritoneal dialysis patients.

              In 49 patients receiving continuous ambulatory peritoneal dialysis, we assessed the relative influences of adequacy of dialysis (assessed by kinetic transfer/volume urea) and psychological symptoms (depression and anxiety) upon the patients' evaluation of their overall quality of life (QoL). Subjects completed self-rating forms for anxiety, depressive, and somatic symptoms, for discrete areas relevant to QoL, and for overall QoL; clinicians also rated QoL. Depressive symptoms proved a much stronger correlate of overall QoL than did the biochemical measure of dialysis adequacy, and they remained influential even after adjustment for anxiety, kinetic transfer/volume, and somatic symptoms. In contrast, the effects of kinetic transfer/volume, anxiety symptoms, and somatic symptoms dropped sharply when adjusted for the other variables. Because psychological (especially depressive) symptoms may be stronger determinants of patients' overall QoL than is adequacy of dialysis, assessing QoL and psychological status should be part of the care of end-stage renal disease patients.

                Author and article information

                Am J Nephrol
                American Journal of Nephrology
                S. Karger AG
                June 2001
                25 June 2001
                : 21
                : 3
                : 215-220
                Division of Nephrology and Hypertension, Winthrop University Hospital, Mineola, N.Y., USA
                46250 Am J Nephrol 2001;21:215–220
                © 2001 S. Karger AG, Basel

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                Figures: 1, Tables: 1, References: 24, Pages: 6
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