A transversal study was carried out in order to evaluate the prevalence of erectile dysfunction (ED) in adult kidney transplant patients of our region (N ¼ 243), and to investigate the sociodemographic, analytic, and clinical factors associated with it. To evaluate ED, the Spanish five items version of the International Index of Erectile Function (IIEF-5) was employed. Sociodemographic, analytic, and clinical data, including 12 cardiovascular risk factors, were also collected. A total of 199 patients (82%) were included. The median age was 52 y (43-62 y); 106 patients (54.9%) presented with ED. Variables associated with ED were: higher age; longer time on dialysis prior to transplantation; higher comorbidity; presence of diabetes mellitus; had undergone prostatic surgery or peripheric artheriopathy; lower diastolic pressure; and some anti hypertensive drugs. Logistic Regression Model performed step by step showed (R 2 ¼ 0.52) that factors independently associated with ED were: age, time on dialysis previous to transplant, and peripheric artheriopathy.
BackgroundThere 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).MethodsProspective 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.ResultsMean 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 (r<0.4), and with SF-36 MCS were moderate-high (r>0.4) 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.ConclusionsResults 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.
The KCCQ features adequate psychometric properties. The KCCQ offers several advantages over other questionnaires because it quantifies symptoms (frequency, severity, and stability) and it is much more sensitive to change, even when compared with the SF-36. The specific questionnaire for heart transplant patients is a useful and user-friendly instrument for measuring the Health-Related Quality of Life related to functional status, quality of life, and social limitation more accurately.
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