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Evaluation of an immunosuppressant side effect instrument
Rebecca P Winsett1, Kris Arheart, Robert J Stratta
1University of Tennessee Health Science Center, Memphis, Tenn, USA. rwinsett@utmem.edu
Background:
Clinicians continue to be compelled to evaluate the impact of immunosuppressive medication side effects on the quality of life of transplant recipients. We Were asked to develop an instrument to measure side effects in immunosuppressed transplant recipients.
Objective:
To construct an instrument that measures the impact and severity of side effects of immunosuppressive medications used in transplantation and to assess the reliability and validity of the newly developed instrument called the Memphis Survey.
Design:
The instrument was constructed by a panel of physicians, nurses, and pharmacists with experience in treating transplant recipients. A small group of kidney transplant recipients (n= 13) provided pilot data for refining and testing the instrument. A national sample of kidney, liver, and heart transplant recipients (n = 505) provided data that were used to further develop the instrument.
Analysis:
Factor analysis was used to determine the psychological dimensions underlying the instrument and to guide the construction of scales from the survey items. The instrument scales were then computed from the dataset of 505 transplant recipients to quantify the impact of immunosuppressant side effects on the quality of life of transplant recipients.
Results And Conclusion:
Analyses showed the final instrument scales to be valid and reliable. Exploratory analysis suggests the need for further testing of the instrument to determine gender differences.
