Exploring the psychometric properties of Gujarati version of WHOQOL-BREF scale among general population of Western Gujarat: A confirmatory factor analysis

被引:0
作者
Chauhan, Meet M. [1 ]
Patel, Ravi R. [2 ]
Savani, Nikita M. [3 ,4 ]
机构
[1] Shantabaa Med Coll, Dept Community Med, Amreli, Gujarat, India
[2] Nootan Med Coll & Res Ctr, Dept Community Med, Visnagar, Gujarat, India
[3] Swaminarayan Inst Med Sci & Res, Dept Community Med, Gandhinagar, Gujarat, India
[4] 1-B Maruti Bungalows,RK Eye Hosp Rd,Ahmedabad Mehs, Gandhinagar 382721, Gujarat, India
关键词
Confirmatory factor analysis; factor analysis; general population; Gujarat; WHOQOL BREF; QUALITY-OF-LIFE; GREEN SPACE; HEALTH; RELIABILITY; VALIDITY; VALIDATION; INSTRUMENT; PEOPLE;
D O I
10.4103/indianjpsychiatry.indianjpsychiatry_391_23
中图分类号
R749 [精神病学];
学科分类号
100205 ;
摘要
Background: Quality of life (QOL) is a useful component in assessing the health of people and society. There are many reports on the validity of the four-domain structure of the World Health Organization Quality of Life-BREF (WHOQOL-BREF), but few studies have investigated the possibility of a better alternative model fit among the general population.The objectives of the study were to perform exploratory factor analysis (EFA) and confirmatory factor analysis (CFA) using the WHOQOL-BREF and to generate a model that fits among the general population of western Gujarat.A community-based cross-sectional study was conducted from September 2022 to February 2023 using the Gujarati version of the WHOQOL-BREF questionnaire among the general population of urban and rural areas. Factor analysis was performed to check the model fit.Factor analysis gave a five-factor structure, and the CFA suggested that the model was acceptable.Based on the findings, this model can better explain QOL and can be used as a reliable and valid instrument for evaluating QOL in the general population of Gujarat.The horrible coronavirus disease 2019 (COVID-19) pandemic has led to devastating disturbances in all aspects of human life, from health to the economy. This has ultimately led to disturbances in people's quality of life (QOL). QOL is a useful component in assessing the health of people and society. It is a subjective perception of various aspects that focuses on physical and mental health, social support, living and nonliving surrounding environment, functional performance of individuals, satisfaction with personal things, etc., However, QOL can be measured in a broad range of ways.[1,2]The development authorities will be able to identify problem areas and make effective management proposals for the improvement of the well-being of the people in that society by measuring the QOL in that society.[3]There are many instruments and scales that quantify the QOL. The World Health Organization (WHO) has developed a QOL instrument, the World Health Organization Quality of Life-BREF (WHOQOL-BREF), which assesses QOL in four domains: physical health, psychological, social relationships, and environment. The QOL in the four domains can be affected by different factors, such as age, gender, occupation, education, place of residence, and health and disease status.[4-6] It also considers environmental factors that affect general health and QOL.[7-9] The WHOQOL-BREF is available in more than 40 languages and has been developed for cross-cultural comparisons of QOL. Domain scores of WHOQOL-BREF have demonstrated good discriminant validity, content validity, internal consistency, and test-retest reliability.[10,11] Validation in other languages and countries is also very well documented.[12-14]There are many reports on the validity of the four-domain structure of the WHOQOL-BREF, but few studies have investigated the possibility of a better alternative model fit among the general population. Given this background, the study was conducted to generate the factor structure by performing exploratory factor analysis (EFA) using the WHOQOL-BREF in an adult population of western Gujarat. This study also explored how well this generated factor structure fits into the sample using confirmatory factor analysis (CFA).Background: Quality of life (QOL) is a useful component in assessing the health of people and society. There are many reports on the validity of the four-domain structure of the World Health Organization Quality of Life-BREF (WHOQOL-BREF), but few studies have investigated the possibility of a better alternative model fit among the general population.The objectives of the study were to perform exploratory factor analysis (EFA) and confirmatory factor analysis (CFA) using the WHOQOL-BREF and to generate a model that fits among the general population of western Gujarat.A community-based cross-sectional study was conducted from September 2022 to February 2023 using the Gujarati version of the WHOQOL-BREF questionnaire among the general population of urban and rural areas. Factor analysis was performed to check the model fit.Factor analysis gave a five-factor structure, and the CFA suggested that the model was acceptable.Based on the findings, this model can better explain QOL and can be used as a reliable and valid instrument for evaluating QOL in the general population of Gujarat.The horrible coronavirus disease 2019 (COVID-19) pandemic has led to devastating disturbances in all aspects of human life, from health to the economy. This has ultimately led to disturbances in people's quality of life (QOL). QOL is a useful component in assessing the health of people and society. It is a subjective perception of various aspects that focuses on physical and mental health, social support, living and nonliving surrounding environment, functional performance of individuals, satisfaction with personal things, etc., However, QOL can be measured in a broad range of ways.[1,2]The development authorities will be able to identify problem areas and make effective management proposals for the improvement of the well-being of the people in that society by measuring the QOL in that society.[3]There are many instruments and scales that quantify the QOL. The World Health Organization (WHO) has developed a QOL instrument, the World Health Organization Quality of Life-BREF (WHOQOL-BREF), which assesses QOL in four domains: physical health, psychological, social relationships, and environment. The QOL in the four domains can be affected by different factors, such as age, gender, occupation, education, place of residence, and health and disease status.[4-6] It also considers environmental factors that affect general health and QOL.[7-9] The WHOQOL-BREF is available in more than 40 languages and has been developed for cross-cultural comparisons of QOL. Domain scores of WHOQOL-BREF have demonstrated good discriminant validity, content validity, internal consistency, and test-retest reliability.[10,11] Validation in other languages and countries is also very well documented.[12-14]There are many reports on the validity of the four-domain structure of the WHOQOL-BREF, but few studies have investigated the possibility of a better alternative model fit among the general population. Given this background, the study was conducted to generate the factor structure by performing exploratory factor analysis (EFA) using the WHOQOL-BREF in an adult population of western Gujarat. This study also explored how well this generated factor structure fits into the sample using confirmatory factor analysis (CFA).Background: Quality of life (QOL) is a useful component in assessing the health of people and society. There are many reports on the validity of the four-domain structure of the World Health Organization Quality of Life-BREF (WHOQOL-BREF), but few studies have investigated the possibility of a better alternative model fit among the general population. The objectives of the study were to perform exploratory factor analysis (EFA) and confirmatory factor analysis (CFA) using the WHOQOL-BREF and to generate a model that fits among the general population of western Gujarat.A community-based cross-sectional study was conducted from September 2022 to February 2023 using the Gujarati version of the WHOQOL-BREF questionnaire among the general population of urban and rural areas. Factor analysis was performed to check the model fit.Factor analysis gave a five-factor structure, and the CFA suggested that the model was acceptable.Based on the findings, this model can better explain QOL and can be used as a reliable and valid instrument for evaluating QOL in the general population of Gujarat.The horrible coronavirus disease 2019 (COVID-19) pandemic has led to devastating disturbances in all aspects of human life, from health to the economy. This has ultimately led to disturbances in people's quality of life (QOL). QOL is a useful component in assessing the health of people and society. It is a subjective perception of various aspects that focuses on physical and mental health, social support, living and nonliving surrounding environment, functional performance of individuals, satisfaction with personal things, etc., However, QOL can be measured in a broad range of ways.[1,2]The development authorities will be able to identify problem areas and make effective management proposals for the improvement of the well-being of the people in that society by measuring the QOL in that society.[3]There are many instruments and scales that quantify the QOL. The World Health Organization (WHO) has developed a QOL instrument, the World Health Organization Quality of Life-BREF (WHOQOL-BREF), which assesses QOL in four domains: physical health, psychological, social relationships, and environment. The QOL in the four domains can be affected by different factors, such as age, gender, occupation, education, place of residence, and health and disease status.[4-6] It also considers environmental factors that affect general health and QOL.[7-9] The WHOQOL-BREF is available in more than 40 languages and has been developed for cross-cultural comparisons of QOL. Domain scores of WHOQOL-BREF have demonstrated good discriminant validity, content validity, internal consistency, and test-retest reliability.[10,11] Validation in other languages and countries is also very well documented.[12-14]There are many reports on the validity of the four-domain structure of the WHOQOL-BREF, but few studies have investigated the possibility of a better alternative model fit among the general population. Given this background, the study was conducted to generate the factor structure by performing exploratory factor analysis (EFA) using the WHOQOL-BREF in an adult population of western Gujarat. This study also explored how well this generated factor structure fits into the sample using confirmatory factor analysis (CFA).Background: Quality of life (QOL) is a useful component in assessing the health of people and society. There are many reports on the validity of the four-domain structure of the World Health Organization Quality of Life-BREF (WHOQOL-BREF), but few studies have investigated the possibility of a better alternative model fit among the general population.The objectives of the study were to perform exploratory factor analysis (EFA) and confirmatory factor analysis (CFA) using the WHOQOL-BREF and to generate a model that fits among the general population of western Gujarat. A community-based cross-sectional study was conducted from September 2022 to February 2023 using the Gujarati version of the WHOQOL-BREF questionnaire among the general population of urban and rural areas. Factor analysis was performed to check the model fit.Factor analysis gave a five-factor structure, and the CFA suggested that the model was acceptable.Based on the findings, this model can better explain QOL and can be used as a reliable and valid instrument for evaluating QOL in the general population of Gujarat.The horrible coronavirus disease 2019 (COVID-19) pandemic has led to devastating disturbances in all aspects of human life, from health to the economy. This has ultimately led to disturbances in people's quality of life (QOL). QOL is a useful component in assessing the health of people and society. It is a subjective perception of various aspects that focuses on physical and mental health, social support, living and nonliving surrounding environment, functional performance of individuals, satisfaction with personal things, etc., However, QOL can be measured in a broad range of ways.[1,2]The development authorities will be able to identify problem areas and make effective management proposals for the improvement of the well-being of the people in that society by measuring the QOL in that society.[3]There are many instruments and scales that quantify the QOL. The World Health Organization (WHO) has developed a QOL instrument, the World Health Organization Quality of Life-BREF (WHOQOL-BREF), which assesses QOL in four domains: physical health, psychological, social relationships, and environment. The QOL in the four domains can be affected by different factors, such as age, gender, occupation, education, place of residence, and health and disease status.[4-6] It also considers environmental factors that affect general health and QOL.[7-9] The WHOQOL-BREF is available in more than 40 languages and has been developed for cross-cultural comparisons of QOL. Domain scores of WHOQOL-BREF have demonstrated good discriminant validity, content validity, internal consistency, and test-retest reliability.[10,11] Validation in other languages and countries is also very well documented.[12-14]There are many reports on the validity of the four-domain structure of the WHOQOL-BREF, but few studies have investigated the possibility of a better alternative model fit among the general population. Given this background, the study was conducted to generate the factor structure by performing exploratory factor analysis (EFA) using the WHOQOL-BREF in an adult population of western Gujarat. This study also explored how well this generated factor structure fits into the sample using confirmatory factor analysis (CFA).Background: Quality of life (QOL) is a useful component in assessing the health of people and society. There are many reports on the validity of the four-domain structure of the World Health Organization Quality of Life-BREF (WHOQOL-BREF), but few studies have investigated the possibility of a better alternative model fit among the general population.The objectives of the study were to perform exploratory factor analysis (EFA) and confirmatory factor analysis (CFA) using the WHOQOL-BREF and to generate a model that fits among the general population of western Gujarat.A community-based cross-sectional study was conducted from September 2022 to February 2023 using the Gujarati version of the WHOQOL-BREF questionnaire among the general population of urban and rural areas. Factor analysis was performed to check the model fit. Factor analysis gave a five-factor structure, and the CFA suggested that the model was acceptable.Based on the findings, this model can better explain QOL and can be used as a reliable and valid instrument for evaluating QOL in the general population of Gujarat.The horrible coronavirus disease 2019 (COVID-19) pandemic has led to devastating disturbances in all aspects of human life, from health to the economy. This has ultimately led to disturbances in people's quality of life (QOL). QOL is a useful component in assessing the health of people and society. It is a subjective perception of various aspects that focuses on physical and mental health, social support, living and nonliving surrounding environment, functional performance of individuals, satisfaction with personal things, etc., However, QOL can be measured in a broad range of ways.[1,2]The development authorities will be able to identify problem areas and make effective management proposals for the improvement of the well-being of the people in that society by measuring the QOL in that society.[3]There are many instruments and scales that quantify the QOL. The World Health Organization (WHO) has developed a QOL instrument, the World Health Organization Quality of Life-BREF (WHOQOL-BREF), which assesses QOL in four domains: physical health, psychological, social relationships, and environment. The QOL in the four domains can be affected by different factors, such as age, gender, occupation, education, place of residence, and health and disease status.[4-6] It also considers environmental factors that affect general health and QOL.[7-9] The WHOQOL-BREF is available in more than 40 languages and has been developed for cross-cultural comparisons of QOL. Domain scores of WHOQOL-BREF have demonstrated good discriminant validity, content validity, internal consistency, and test-retest reliability.[10,11] Validation in other languages and countries is also very well documented.[12-14]There are many reports on the validity of the four-domain structure of the WHOQOL-BREF, but few studies have investigated the possibility of a better alternative model fit among the general population. Given this background, the study was conducted to generate the factor structure by performing exploratory factor analysis (EFA) using the WHOQOL-BREF in an adult population of western Gujarat. This study also explored how well this generated factor structure fits into the sample using confirmatory factor analysis (CFA).Background: Quality of life (QOL) is a useful component in assessing the health of people and society. There are many reports on the validity of the four-domain structure of the World Health Organization Quality of Life-BREF (WHOQOL-BREF), but few studies have investigated the possibility of a better alternative model fit among the general population.The objectives of the study were to perform exploratory factor analysis (EFA) and confirmatory factor analysis (CFA) using the WHOQOL-BREF and to generate a model that fits among the general population of western Gujarat.A community-based cross-sectional study was conducted from September 2022 to February 2023 using the Gujarati version of the WHOQOL-BREF questionnaire among the general population of urban and rural areas. Factor analysis was performed to check the model fit.Factor analysis gave a five-factor structure, and the CFA suggested that the model was acceptable.Based on the findings, this model can better explain QOL and can be used as a reliable and valid instrument for evaluating QOL in the general population of Gujarat. The horrible coronavirus disease 2019 (COVID-19) pandemic has led to devastating disturbances in all aspects of human life, from health to the economy. This has ultimately led to disturbances in people's quality of life (QOL). QOL is a useful component in assessing the health of people and society. It is a subjective perception of various aspects that focuses on physical and mental health, social support, living and nonliving surrounding environment, functional performance of individuals, satisfaction with personal things, etc., However, QOL can be measured in a broad range of ways.[1,2]The development authorities will be able to identify problem areas and make effective management proposals for the improvement of the well-being of the people in that society by measuring the QOL in that society.[3]There are many instruments and scales that quantify the QOL. The World Health Organization (WHO) has developed a QOL instrument, the World Health Organization Quality of Life-BREF (WHOQOL-BREF), which assesses QOL in four domains: physical health, psychological, social relationships, and environment. The QOL in the four domains can be affected by different factors, such as age, gender, occupation, education, place of residence, and health and disease status.[4-6] It also considers environmental factors that affect general health and QOL.[7-9] The WHOQOL-BREF is available in more than 40 languages and has been developed for cross-cultural comparisons of QOL. Domain scores of WHOQOL-BREF have demonstrated good discriminant validity, content validity, internal consistency, and test-retest reliability.[10,11] Validation in other languages and countries is also very well documented.[12-14]There are many reports on the validity of the four-domain structure of the WHOQOL-BREF, but few studies have investigated the possibility of a better alternative model fit among the general population. Given this background, the study was conducted to generate the factor structure by performing exploratory factor analysis (EFA) using the WHOQOL-BREF in an adult population of western Gujarat. This study also explored how well this generated factor structure fits into the sample using confirmatory factor analysis (CFA).Background: Quality of life (QOL) is a useful component in assessing the health of people and society. There are many reports on the validity of the four-domain structure of the World Health Organization Quality of Life-BREF (WHOQOL-BREF), but few studies have investigated the possibility of a better alternative model fit among the general population.The objectives of the study were to perform exploratory factor analysis (EFA) and confirmatory factor analysis (CFA) using the WHOQOL-BREF and to generate a model that fits among the general population of western Gujarat.A community-based cross-sectional study was conducted from September 2022 to February 2023 using the Gujarati version of the WHOQOL-BREF questionnaire among the general population of urban and rural areas. Factor analysis was performed to check the model fit.Factor analysis gave a five-factor structure, and the CFA suggested that the model was acceptable.Based on the findings, this model can better explain QOL and can be used as a reliable and valid instrument for evaluating QOL in the general population of Gujarat.The horrible coronavirus disease 2019 (COVID-19) pandemic has led to devastating disturbances in all aspects of human life, from health to the economy. This has ultimately led to disturbances in people's quality of life (QOL). QOL is a useful component in assessing the health of people and society. It is a subjective perception of various aspects that focuses on physical and mental health, social support, living and nonliving surrounding environment, functional performance of individuals, satisfaction with personal things, etc., However, QOL can be measured in a broad range of ways.[1,2]The development authorities will be able to identify problem areas and make effective management proposals for the improvement of the well-being of the people in that society by measuring the QOL in that society.[3]There are many instruments and scales that quantify the QOL. The World Health Organization (WHO) has developed a QOL instrument, the World Health Organization Quality of Life-BREF (WHOQOL-BREF), which assesses QOL in four domains: physical health, psychological, social relationships, and environment. The QOL in the four domains can be affected by different factors, such as age, gender, occupation, education, place of residence, and health and disease status.[4-6] It also considers environmental factors that affect general health and QOL.[7-9] The WHOQOL-BREF is available in more than 40 languages and has been developed for cross-cultural comparisons of QOL. Domain scores of WHOQOL-BREF have demonstrated good discriminant validity, content validity, internal consistency, and test-retest reliability.[10,11] Validation in other languages and countries is also very well documented.[12-14]There are many reports on the validity of the four-domain structure of the WHOQOL-BREF, but few studies have investigated the possibility of a better alternative model fit among the general population. Given this background, the study was conducted to generate the factor structure by performing exploratory factor analysis (EFA) using the WHOQOL-BREF in an adult population of western Gujarat. This study also explored how well this generated factor structure fits into the sample using confirmatory factor analysis (CFA).Background: Quality of life (QOL) is a useful component in assessing the health of people and society. There are many reports on the validity of the four-domain structure of the World Health Organization Quality of Life-BREF (WHOQOL-BREF), but few studies have investigated the possibility of a better alternative model fit among the general population.The objectives of the study were to perform exploratory factor analysis (EFA) and confirmatory factor analysis (CFA) using the WHOQOL-BREF and to generate a model that fits among the general population of western Gujarat.A community-based cross-sectional study was conducted from September 2022 to February 2023 using the Gujarati version of the WHOQOL-BREF questionnaire among the general population of urban and rural areas. Factor analysis was performed to check the model fit.Factor analysis gave a five-factor structure, and the CFA suggested that the model was acceptable.Based on the findings, this model can better explain QOL and can be used as a reliable and valid instrument for evaluating QOL in the general population of Gujarat.The horrible coronavirus disease 2019 (COVID-19) pandemic has led to devastating disturbances in all aspects of human life, from health to the economy. This has ultimately led to disturbances in people's quality of life (QOL). QOL is a useful component in assessing the health of people and society. It is a subjective perception of various aspects that focuses on physical and mental health, social support, living and nonliving surrounding environment, functional performance of individuals, satisfaction with personal things, etc., However, QOL can be measured in a broad range of ways.[1,2]The development authorities will be able to identify problem areas and make effective management proposals for the improvement of the well-being of the people in that society by measuring the QOL in that society.[3]There are many instruments and scales that quantify the QOL. The World Health Organization (WHO) has developed a QOL instrument, the World Health Organization Quality of Life-BREF (WHOQOL-BREF), which assesses QOL in four domains: physical health, psychological, social relationships, and environment. The QOL in the four domains can be affected by different factors, such as age, gender, occupation, education, place of residence, and health and disease status.[4-6] It also considers environmental factors that affect general health and QOL.[7-9] The WHOQOL-BREF is available in more than 40 languages and has been developed for cross-cultural comparisons of QOL. Domain scores of WHOQOL-BREF have demonstrated good discriminant validity, content validity, internal consistency, and test-retest reliability.[10,11] Validation in other languages and countries is also very well documented.[12-14]There are many reports on the validity of the four-domain structure of the WHOQOL-BREF, but few studies have investigated the possibility of a better alternative model fit among the general population. Given this background, the study was conducted to generate the factor structure by performing exploratory factor analysis (EFA) using the WHOQOL-BREF in an adult population of western Gujarat. This study also explored how well this generated factor structure fits into the sample using confirmatory factor analysis (CFA).Background: Quality of life (QOL) is a useful component in assessing the health of people and society. There are many reports on the validity of the four-domain structure of the World Health Organization Quality of Life-BREF (WHOQOL-BREF), but few studies have investigated the possibility of a better alternative model fit among the general population.The objectives of the study were to perform exploratory factor analysis (EFA) and confirmatory factor analysis (CFA) using the WHOQOL-BREF and to generate a model that fits among the general population of western Gujarat.A community-based cross-sectional study was conducted from September 2022 to February 2023 using the Gujarati version of the WHOQOL-BREF questionnaire among the general population of urban and rural areas. Factor analysis was performed to check the model fit.Factor analysis gave a five-factor structure, and the CFA suggested that the model was acceptable.Based on the findings, this model can better explain QOL and can be used as a reliable and valid instrument for evaluating QOL in the general population of Gujarat.The horrible coronavirus disease 2019 (COVID-19) pandemic has led to devastating disturbances in all aspects of human life, from health to the economy. This has ultimately led to disturbances in people's quality of life (QOL). QOL is a useful component in assessing the health of people and society. It is a subjective perception of various aspects that focuses on physical and mental health, social support, living and nonliving surrounding environment, functional performance of individuals, satisfaction with personal things, etc. , However, QOL can be measured in a broad range of ways.[1,2]The development authorities will be able to identify problem areas and make effective management proposals for the improvement of the well-being of the people in that society by measuring the QOL in that society.[3]There are many instruments and scales that quantify the QOL. The World Health Organization (WHO) has developed a QOL instrument, the World Health Organization Quality of Life-BREF (WHOQOL-BREF), which assesses QOL in four domains: physical health, psychological, social relationships, and environment. The QOL in the four domains can be affected by different factors, such as age, gender, occupation, education, place of residence, and health and disease status.[4-6] It also considers environmental factors that affect general health and QOL.[7-9] The WHOQOL-BREF is available in more than 40 languages and has been developed for cross-cultural comparisons of QOL. Domain scores of WHOQOL-BREF have demonstrated good discriminant validity, content validity, internal consistency, and test-retest reliability.[10,11] Validation in other languages and countries is also very well documented.[12-14]There are many reports on the validity of the four-domain structure of the WHOQOL-BREF, but few studies have investigated the possibility of a better alternative model fit among the general population. Given this background, the study was conducted to generate the factor structure by performing exploratory factor analysis (EFA) using the WHOQOL-BREF in an adult population of western Gujarat. This study also explored how well this generated factor structure fits into the sample using confirmatory factor analysis (CFA).
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共 35 条
[1]  
Alfredo J., BREF in a Mexican adult sample, V2, P105
[2]  
[Anonymous], 2021, jamovi
[3]  
Apidechkul T, 2011, SE ASIAN J TROP MED, V42, P1282
[4]   Differential Item Functioning of WHOQOL-BREF in nine lberoamerican countries [J].
Benitez-Borrego, Sonia ;
Mancho-Fora, Nuria ;
Farras-Permanyer, Laia ;
Urzua-Morales, Alfonso ;
Guardia-Olmosa, Joan .
REVISTA IBEROAMERICANA DE PSICOLOGIA Y SALUD, 2016, 7 (02) :51-59
[5]   Factorial structural analysis of the Spanish version of WHOQOL-BREF: an exploratory structural equation model study [J].
Benitez-Borrego, Sonia ;
Guardia-Olmos, Joan ;
Urzua-Morales, Alfonso .
QUALITY OF LIFE RESEARCH, 2014, 23 (08) :2205-2212
[6]   Validation of the United States' version of the World Health Organization Quality of Life (WHOQOL) instrument [J].
Bonomi, AE ;
Patrick, DL ;
Bushnell, DM ;
Martin, M .
JOURNAL OF CLINICAL EPIDEMIOLOGY, 2000, 53 (01) :1-12
[7]  
Carta Mauro Giovanni, 2012, Clin Pract Epidemiol Ment Health, V8, P169, DOI 10.2174/1745017901208010169
[8]   Measurement equivalence of the English, Chinese and Malay versions of the World Health Organization quality of life (WHOQOL-BREF) questionnaires [J].
Cheung, Yin Bun ;
Yeo, Khung Keong ;
Chong, Kok Joon ;
Khoo, Eric Yin Hao ;
Wee, Hwee Lin .
HEALTH AND QUALITY OF LIFE OUTCOMES, 2019, 17 (1)
[9]  
Diana DS., Stat Data Anal, P1
[10]   Application of the Portuguese version of the abbreviated instrument of quality life WHOQOL-bref [J].
Fleck, MPA ;
Louzada, S ;
Xavier, M ;
Chachamovich, E ;
Vieira, G ;
Santos, L ;
Pinzon, V .
REVISTA DE SAUDE PUBLICA, 2000, 34 (02) :178-183