Psychometric evaluation of the Malay version of the Impact of Weight on Quality of Life-Lite (IWQOL-LITE) questionnaire

Psychometric evaluation of the Malay version of the Impact of Weight on Quality of Life-Lite (IWQOL-LITE) questionnaire

Introduction The availability of obesity specific quality of life measurement tool is limited. The Malay version of Impact of Weight on Quality of Life-Lite is an obesity specific quality of life questionnaire which has been translated for use in Malaysia. The aim of this study is to evaluate the v...

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Main Authors: Mohd Rizal Abdul Manaf, Ahmad Fareed Abdul Rahman, Aniza Ismail, Sharifa Ezat Wan Puteh, Azimatunnoor Aizuddin
Format: Article
Language:English
Published: Jabatan Kesihatan Masyarakat, Pusat Perubatan Universiti Kebangsaan Malaysia 2018
Online Access:http://journalarticle.ukm.my/11592/
http://journalarticle.ukm.my/11592/
http://journalarticle.ukm.my/11592/1/91-961-1-PB.pdf
id ukm-11592
recordtype eprints
spelling ukm-115922018-04-14T23:32:34Z http://journalarticle.ukm.my/11592/ Psychometric evaluation of the Malay version of the Impact of Weight on Quality of Life-Lite (IWQOL-LITE) questionnaire Mohd Rizal Abdul Manaf, Ahmad Fareed Abdul Rahman, Aniza Ismail, Sharifa Ezat Wan Puteh, Azimatunnoor Aizuddin, Introduction The availability of obesity specific quality of life measurement tool is limited. The Malay version of Impact of Weight on Quality of Life-Lite is an obesity specific quality of life questionnaire which has been translated for use in Malaysia. The aim of this study is to evaluate the validity and reliability of this questionnaire to measure quality of life among different body mass index (BMI) groups. Methods One hundred and twenty subjects with different BMI categories who attended an outpatient government clinic were recruited for this study. The translated Malay version of IWQOL-Lite was used to assess the impact of weight on quality of life of respondents. Content validity, criterion validity and construct validity were used to assess the questionnaire validity while internal consistencies and test-retest reliability were used to assess the questionnaire reliability. Results The Malay version of IWQOL-Lite showed good psychometric properties. The content validity was agreed upon by expert panels. The mean score of all IWQOL-Lite domains were able to discriminate between different BMI groups. Good internal consistency was demonstrated by Cronbach alpha of 0.936. Test-retest reliability ranged from 0.828 to 0.932. The physical function score (IWQOL-Lite) correlated positively with Physical Component Summary of Short Form-36 questionnaire. Exploratory factor analysis found that the questions loaded on their respective five domains. Conclusions The results suggested that the Malay version of IWQOL-Lite is a valid and reliable tool to measure quality of life among obese and overweight subjects in Malaysia. Jabatan Kesihatan Masyarakat, Pusat Perubatan Universiti Kebangsaan Malaysia 2018 Article PeerReviewed application/pdf en http://journalarticle.ukm.my/11592/1/91-961-1-PB.pdf Mohd Rizal Abdul Manaf, and Ahmad Fareed Abdul Rahman, and Aniza Ismail, and Sharifa Ezat Wan Puteh, and Azimatunnoor Aizuddin, (2018) Psychometric evaluation of the Malay version of the Impact of Weight on Quality of Life-Lite (IWQOL-LITE) questionnaire. International Journal of Public Health Research, 8 (1). pp. 950-955. ISSN 2232-0245 http://spaj.ukm.my/ijphr/index.php/ijphr/issue/view/10
repository_type Digital Repository
institution_category Local University
institution Universiti Kebangasaan Malaysia
building UKM Institutional Repository
collection Online Access
language English
description Introduction The availability of obesity specific quality of life measurement tool is limited. The Malay version of Impact of Weight on Quality of Life-Lite is an obesity specific quality of life questionnaire which has been translated for use in Malaysia. The aim of this study is to evaluate the validity and reliability of this questionnaire to measure quality of life among different body mass index (BMI) groups. Methods One hundred and twenty subjects with different BMI categories who attended an outpatient government clinic were recruited for this study. The translated Malay version of IWQOL-Lite was used to assess the impact of weight on quality of life of respondents. Content validity, criterion validity and construct validity were used to assess the questionnaire validity while internal consistencies and test-retest reliability were used to assess the questionnaire reliability. Results The Malay version of IWQOL-Lite showed good psychometric properties. The content validity was agreed upon by expert panels. The mean score of all IWQOL-Lite domains were able to discriminate between different BMI groups. Good internal consistency was demonstrated by Cronbach alpha of 0.936. Test-retest reliability ranged from 0.828 to 0.932. The physical function score (IWQOL-Lite) correlated positively with Physical Component Summary of Short Form-36 questionnaire. Exploratory factor analysis found that the questions loaded on their respective five domains. Conclusions The results suggested that the Malay version of IWQOL-Lite is a valid and reliable tool to measure quality of life among obese and overweight subjects in Malaysia.
format Article
author Mohd Rizal Abdul Manaf,
Ahmad Fareed Abdul Rahman,
Aniza Ismail,
Sharifa Ezat Wan Puteh,
Azimatunnoor Aizuddin,
spellingShingle Mohd Rizal Abdul Manaf,
Ahmad Fareed Abdul Rahman,
Aniza Ismail,
Sharifa Ezat Wan Puteh,
Azimatunnoor Aizuddin,
Psychometric evaluation of the Malay version of the Impact of Weight on Quality of Life-Lite (IWQOL-LITE) questionnaire
author_facet Mohd Rizal Abdul Manaf,
Ahmad Fareed Abdul Rahman,
Aniza Ismail,
Sharifa Ezat Wan Puteh,
Azimatunnoor Aizuddin,
author_sort Mohd Rizal Abdul Manaf,
title Psychometric evaluation of the Malay version of the Impact of Weight on Quality of Life-Lite (IWQOL-LITE) questionnaire
title_short Psychometric evaluation of the Malay version of the Impact of Weight on Quality of Life-Lite (IWQOL-LITE) questionnaire
title_full Psychometric evaluation of the Malay version of the Impact of Weight on Quality of Life-Lite (IWQOL-LITE) questionnaire
title_fullStr Psychometric evaluation of the Malay version of the Impact of Weight on Quality of Life-Lite (IWQOL-LITE) questionnaire
title_full_unstemmed Psychometric evaluation of the Malay version of the Impact of Weight on Quality of Life-Lite (IWQOL-LITE) questionnaire
title_sort psychometric evaluation of the malay version of the impact of weight on quality of life-lite (iwqol-lite) questionnaire
publisher Jabatan Kesihatan Masyarakat, Pusat Perubatan Universiti Kebangsaan Malaysia
publishDate 2018
url http://journalarticle.ukm.my/11592/
http://journalarticle.ukm.my/11592/
http://journalarticle.ukm.my/11592/1/91-961-1-PB.pdf
first_indexed 2023-09-18T20:00:42Z
last_indexed 2023-09-18T20:00:42Z
_version_ 1777406828472172544

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