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Iran J Neurol. 2015 Apr 4;14(2):94-100.

Stroke specific quality of life questionnaire: Test of reliability and validity of the Persian version.

Author information

1
Health Policy Research Center AND School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran.
2
Department of Pharmacology, School of Medicine, Islamic Azad University, Kazeroon Branch, Kazeroon, Iran.
3
Department of Dental Public Health, School of Dentistry, Shiraz University of Medical Sciences, Shiraz, Iran.
4
Student Research Committee, Shiraz University of Medical Sciences, Shiraz, Iran.
5
Department of Epidemiology, School of Health, Shiraz University of Medical Sciences, Shiraz, Iran.
6
Clinical Neurology Research Center AND Department of Neurology, Shiraz University of Medical Sciences, Shiraz, Iran.

Abstract

BACKGROUND:

The aim was to assess the reliability and the validity of the translated version of the stroke specific quality of life (SS-QOL) questionnaire in Iranian post-stroke patients.

METHODS:

This project was performed at the Shiraz University of Medical Sciences, Shiraz, Iran, between 12 April 2010 and 24 February 2011. The English version of the SS-QOL was translated into Persian by "forward-backward" translation, cognitive inquiring and cultural adaptation process. The reliability and internal consistency were measured by Cronbach's alpha coefficient. Validity was assessed using convergent and divergent validity through Spearman's correlation coefficient.

RESULTS:

Our study included 117 post-stroke patients, consisting of 57 (48.7%) men and 60 (51.3%) women. The mean age of the patients was 81.60 ± 7.52 (range 60-88) years. The Persian version of the SS-QOL proved reliable (Cronbach's α = 0.96). Internal consistency was excellent for both demographic and patients' clinical characteristics (Cronbach's α ≥ 0.70). The scaling success rates were 100% for convergent validity of each scale. Divergent validity for all 12 scales was considered acceptable, whereas each scale had a 100% scaling success rate for convergent validity.

CONCLUSION:

The Persian version of SS-QOL should be mentioned as a noteworthy instrument to specify different aspects of health related QOL of patients suffering stroke and hence that clinicians, researchers and epidemiologist can exploit it trustfully.

KEYWORDS:

Quality of Life; Questionnaires; Reproducibility of Results; Stroke

PMID:
26056554
PMCID:
PMC4449400

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