TRANSLATION, CULTURAL ADAPTATION AND PSYCHOMETRIC ANALYSIS OF URDU VERSION OF STROKE SPECIFIC QUALITY OF LIFE SCALE IN STROKE PATIENTS

Hafiza Maria Hira, Umair Ahmed, Hafiza Sana Ashraf, Naeem Rasool, Hafsa Khalid, Areej Akmal Bajwa, Ayesha Zulfiqar, Dr.Mehreen Jabbar

ABSTRACT

Background: The leading cause of adult disability globally is stroke. Although stroke is rated as the third major cause of mortality in wealthy nations, it is the second major cause of mortality in developing nations. With an ageing population, this noncommunicable disease's socioeconomic significance is increasing.

Objective: To translate, validate and culturally adapt the Urdu version of Stroke Specific Quality of Life in Stroke patients.

Methodology: A cross-sectional study was conducted on 147 (35-65 years) stroke patients at the Physiotherapy Department of the University of Lahore Teaching Hospital through non-probability convenient sampling technique. There were two stages to the research: 1) Translation and cultural adaptation 2) Testing psychometric properties. A final Urdu version was developed by following Beaten guidelines throughout the translation, adaptation and measuring the psychometric properties.

Results: The Urdu SS-QOL demonstrated good test-retest reliability (ICC= 0.812 (0.790-0.814); CI=95%). Good internal consistency of SSQOL-U was obtained as Cronbach's alpha value was 0.810. The study observed a moderate to strong positive convergent validity (Pearson correlation between SS-QOL and Short form 12; r= 0.52-0.99). Factor analysis revealed 12 subdomains of SSQOL-U or all 49 items.

Conclusion: Study has successfully translated, culturally adapted, and validated the Urdu version of the Stroke-specific Quality of Life (SS-QOL) scale for stroke patients within the Pakistani population. The SS-QOL Urdu version has demonstrated good test-retest reliability, internal consistency, and validity, making it a reliable tool for assessing the quality of life in this specific patient group. The study also stands out for conducting principal component analysis, consistently revealing 12 subdomains similar to the original English version.

Keywords: Cultural adaptation, Psychometric properties, Quality of life, Reliability, Short form 12, SSQOL-U, Stroke, Translation, Validity