Reliability and validity of the Turkish version of the intermittent self-catheterization questionnaire in patients with spinal cord injury

Purpose To evaluate the validity and reliability of the Turkish version of the Intermittent Self-Catheterization Questionnaire (ISC-Q) in patients with spinal cord injury (SCI). This questionnaire evaluates four problems related to the use of ISC, which are ease of use, convenience, discreetness and psychological well-being. Methods A total of 60 SCI (40 males, 20 females) patients were included in the study. Reliability was assessed using Cronbach's alpha and intraclass correlation coefficient (ICC) methods, and the validity was assessed using the correlations between the ISC-Q scores and the scores for the King's health questionnaire (KHQ). Results The mean age of the study sample was 37.07 +/- 12.6 years. Of patients, 56.6% were completely injured. Both the internal consistency (Cronbach's alpha coefficient 0.899-0.947) and the test-retest reliability (intraclass correlation coefficient 0.899-0.947) of the ISC-Q were found to be high in patients with SCI. In the validity analysis, significant positive correlation was identified between convenience, psychological well-being, and total score domains and most subgroups of the KHQ, and also significant negative correlation was found between the discreetness of the domain and the impact of urinary incontinence, role limitation, physical limitation, social limitation and emotional status domains of the KHQ. Conclusion The Turkish version of the ISC-Q can be considered a reliable and valid tool for the evaluation of quality of life related to catheterization in patients with SCI.