Spanish validation of the "Kidney Transplant Questionnaire": a useful instrument for assessing health related quality of
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Spanish validation of the "Kidney Transplant Questionnaire": a useful instrument for assessing health related quality of life in kidney transplant patients Pablo Rebollo*1, Francisco Ortega†1,2, Teresa Ortega†2, Covadonga Valdés†2, Mónica García-Mendoza†1 and Ernesto Gómez†3 Address: 1Outcomes Research Unit. Nephrology Unit. Hospital Central de Asturias. C/ Celestino Villamil S/N. 33006. Oviedo. Spain, 2Institute "Reina Sofía" for Nephrological Research. Oviedo. Spain and 3Nephrology Unit. Hospital Central de Asturias. C/ Celestino Villamil S/N. 33006. Oviedo. Spain Email: Pablo Rebollo* - [email protected]; Francisco Ortega - [email protected]; Teresa Ortega - [email protected]; Covadonga Valdés - [email protected]; Mónica García-Mendoza - [email protected]; Ernesto Gómez - [email protected] * Corresponding author †Equal contributors
Published: 17 October 2003 Health and Quality of Life Outcomes 2003, 1:56
Received: 30 April 2003 Accepted: 17 October 2003
This article is available from: http://www.hqlo.com/content/1/1/56 © 2003 Rebollo et al; licensee BioMed Central Ltd. This is an Open Access article: verbatim copying and redistribution of this article are permitted in all media for any purpose, provided this notice is preserved along with the article's original URL.
Abstract Background: There is a growing interest in the evaluation of Health Related Quality of Life (HRQoL) among patients undergoing Renal Replacement Therapy. In Spain, no specific questionnaire exists for kidney transplant patients. Here we present the Spanish validation of the first specific HRQoL assessment tool: the kidney transplant questionnaire (KTQ). Methods: Prospective study of 31 patients on transplant waiting list who received the first kidney. Patients were evaluated before transplant and after 1, 3, 6 and 12 months, using the KTQ and the SF-36 Health Survey. Feasibility, validity, reliability, and sensibility to change were evaluated. Results: Mean time of administration of the KTQ was 12 minutes. Correlation coefficients among KTQ dimensions range between 0.32 and 0.72. Correlation coefficients of KTQ dimensions with SF-36 PCS were low (r0.4) except for Physical Symptom dimension (r = 0.33). Cronbach's Alpha was satisfactory for all KTQ dimensions (Physical Symptoms = 0.80; Fatigue = 0.93; Uncertainty/Fear = 0.81; Emotional= 0.90) except Appearance (0.69). Intraclass correlation coefficients ranged between 0.63 and 0.85, similar to those of the original KTQ version. Conclusions: Results of validation study show that feasibility, validity, reliability and sensibility to change of the Spanish version of the KTQ are similar to those of the original version.
Background The evaluation of Health Related Quality of Life (HRQoL) in chronic diseases is becoming more and more important. The reasons for the importance of HRQoL assessment can be summarized as follows [1]: 1° to determine the efficacy of medical intervention; 2° to improve the
process of making clinical decisions; 3° to evaluate the quality of care; 4° to
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