Paper Information

Journal:   MEDICAL JOURNAL OF THE ISLAMIC REPUBLIC OF IRAN (MJIRI)   2017 , Volume 31 , Number 1; Page(s) 0 To 0.
 
Paper: 

Psychometric properties of the Urdu version of the World Health Organization's quality of life questionnaire (WHOQOL-BREF)

 
DOI: 

10.14196/mjiri.31.129

 
Author(s):  Lodhi Fahad Saqib, RAZA OWAIS, MONTAZERI ALI, NEDJAT SAHARNAZ, YASERI MEHDI, HOLAKOUIE NAIENI KOUROSH*
 
* Department of Epidemiology and Biostatistics, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
 
Abstract: 
Background: The present study was conducted to translate and validate the World Health Organization’ s Quality-of-Life Scale-BREF into local language of Pakistan. Methods: A forward-backward translation procedure was followed to develop the Pakistani version of the questionnaire. Through a multi-stage clustered sampling technique, a sample of individuals aged 18 years and above completed the questionnaire in Abbottabad district, Pakistan. Psychometric properties of the instrument including reliability (internal consistency and test-retest analysis), validity (known group comparison and items’ correlation) and their domains were assessed. Satisfactory results were also shown in the correlation matrix in all domains. Results: A total of 2060 participants were recruited in this study. Participants’ mean age was 35. 51 (SD= 14. 31) years in healthy individuals and 39. 29 (SD= 14. 31) years in diseased individuals. The internal consistency of the WHOQOL-BREF (Pakistani Version) was 0. 86. Moreover, the physical, psychological, and environmental domains had acceptable reliability (alpha= 0. 78, 0. 75, and 0. 73, respectively), but reliability was low (alpha= 0. 56) in the social domain. Reproducibility of the WHOQOL-BREF was as follows: ICC range: 0. 72– 0. 92 at 2-week retest interval. After performing comparison analysis, the results indicated that the questionnaire significantly segregated the study groups in all QoL domains, except for social relationship. Conclusion: The study provided strong exploratory evidence for the reliability and validity of the WHOQOL-BREF for use in Pakistan. However, more exploration is needed to improve the reliability results in the social domain.
 
Keyword(s): Reliability,Quality of life,Validity,Pakistan,WHOQOL-BREF
 
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