Psychometric evaluation of the Taiwan Chinese version of the EORTC QLQ-PR25 for HRQOL assessment in prostate cancer patients

Yu Jun Chang; Wen Miin Liang; Hsi Chin Wu; Hsueh Chun Lin; Jong Yi Wang; Tsai Chung Li; Yi Chun Yeh; Chih Hung Chang

doi:10.1186/1477-7525-10-96

Psychometric evaluation of the Taiwan Chinese version of the EORTC QLQ-PR25 for HRQOL assessment in prostate cancer patients

Yu Jun Chang, Wen Miin Liang, Hsi Chin Wu, Hsueh Chun Lin, Jong Yi Wang, Tsai Chung Li, Yi Chun Yeh, Chih Hung Chang

Research output: Contribution to journal › Article › peer-review

8 Scopus citations

Abstract

Objective: To evaluate the psychometric properties of the Taiwan Chinese Version of the EORTC QLQ-PR25 health-related quality of life (HRQOL) questionnaire for patients with prostate cancer.Methods: 135 prostate cancer patients were recruited in the urology outpatient clinic of a university teaching hospital. Each patient completed the EORTC QLQ-PR25 at every clinic visit between 2004 and 2008, totaling 633 assessments. Confirmatory factor analysis and Rasch analysis were used to evaluate the domain- and item-level psychometric properties.Results: The results supported the unidimensionality of each of the four EORTC QLQ-PR25 domains (urinary, bowel, and hormonal-treatment-related symptoms, and sexual functioning). Item calibrations for each domain were found invariant across the three assessment time periods. The item-person maps showed 71.3% of item coverage for the urinary symptoms domain and 13-42.7% for the other three domains.Conclusions: The Taiwan Chinese Version of the EORTC QLQ-PR25 questionnaire is reliable and can be used to measure HRQOL over time. Adding new items to each domain may improve its clinical content coverage and measurement precision.

Original language	English
Article number	96
Journal	Health and Quality of Life Outcomes
Volume	10
DOIs	https://doi.org/10.1186/1477-7525-10-96
State	Published - Aug 20 2012

Keywords

EORTC QLQ-PR25
Health-related quality of life
Item response theory
Prostate cancer
Rasch analysis

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10.1186/1477-7525-10-96

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@article{974e3de7ee7e4ca4b306f08d1c1e4bb8,

title = "Psychometric evaluation of the Taiwan Chinese version of the EORTC QLQ-PR25 for HRQOL assessment in prostate cancer patients",

abstract = "Objective: To evaluate the psychometric properties of the Taiwan Chinese Version of the EORTC QLQ-PR25 health-related quality of life (HRQOL) questionnaire for patients with prostate cancer.Methods: 135 prostate cancer patients were recruited in the urology outpatient clinic of a university teaching hospital. Each patient completed the EORTC QLQ-PR25 at every clinic visit between 2004 and 2008, totaling 633 assessments. Confirmatory factor analysis and Rasch analysis were used to evaluate the domain- and item-level psychometric properties.Results: The results supported the unidimensionality of each of the four EORTC QLQ-PR25 domains (urinary, bowel, and hormonal-treatment-related symptoms, and sexual functioning). Item calibrations for each domain were found invariant across the three assessment time periods. The item-person maps showed 71.3% of item coverage for the urinary symptoms domain and 13-42.7% for the other three domains.Conclusions: The Taiwan Chinese Version of the EORTC QLQ-PR25 questionnaire is reliable and can be used to measure HRQOL over time. Adding new items to each domain may improve its clinical content coverage and measurement precision.",

keywords = "EORTC QLQ-PR25, Health-related quality of life, Item response theory, Prostate cancer, Rasch analysis",

author = "Chang, {Yu Jun} and Liang, {Wen Miin} and Wu, {Hsi Chin} and Lin, {Hsueh Chun} and Wang, {Jong Yi} and Li, {Tsai Chung} and Yeh, {Yi Chun} and Chang, {Chih Hung}",

note = "Funding Information: This research project was supported by China Medical University (CMU96-228, CMU97-321 and CMU96-153). It was also supported in part by funding from the Department of Health of Taiwan to both the Clinical Trial and Research Center of Excellence (DOH99-TD-B-111-004) and China Medical University Hospital Cancer Research of Excellence (DOH99-TD-C-111-005).",

year = "2012",

month = aug,

day = "20",

doi = "10.1186/1477-7525-10-96",

language = "English",

volume = "10",

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T1 - Psychometric evaluation of the Taiwan Chinese version of the EORTC QLQ-PR25 for HRQOL assessment in prostate cancer patients

AU - Chang, Yu Jun

AU - Liang, Wen Miin

AU - Wu, Hsi Chin

AU - Lin, Hsueh Chun

AU - Wang, Jong Yi

AU - Li, Tsai Chung

AU - Yeh, Yi Chun

AU - Chang, Chih Hung

N1 - Funding Information: This research project was supported by China Medical University (CMU96-228, CMU97-321 and CMU96-153). It was also supported in part by funding from the Department of Health of Taiwan to both the Clinical Trial and Research Center of Excellence (DOH99-TD-B-111-004) and China Medical University Hospital Cancer Research of Excellence (DOH99-TD-C-111-005).

PY - 2012/8/20

Y1 - 2012/8/20

N2 - Objective: To evaluate the psychometric properties of the Taiwan Chinese Version of the EORTC QLQ-PR25 health-related quality of life (HRQOL) questionnaire for patients with prostate cancer.Methods: 135 prostate cancer patients were recruited in the urology outpatient clinic of a university teaching hospital. Each patient completed the EORTC QLQ-PR25 at every clinic visit between 2004 and 2008, totaling 633 assessments. Confirmatory factor analysis and Rasch analysis were used to evaluate the domain- and item-level psychometric properties.Results: The results supported the unidimensionality of each of the four EORTC QLQ-PR25 domains (urinary, bowel, and hormonal-treatment-related symptoms, and sexual functioning). Item calibrations for each domain were found invariant across the three assessment time periods. The item-person maps showed 71.3% of item coverage for the urinary symptoms domain and 13-42.7% for the other three domains.Conclusions: The Taiwan Chinese Version of the EORTC QLQ-PR25 questionnaire is reliable and can be used to measure HRQOL over time. Adding new items to each domain may improve its clinical content coverage and measurement precision.

AB - Objective: To evaluate the psychometric properties of the Taiwan Chinese Version of the EORTC QLQ-PR25 health-related quality of life (HRQOL) questionnaire for patients with prostate cancer.Methods: 135 prostate cancer patients were recruited in the urology outpatient clinic of a university teaching hospital. Each patient completed the EORTC QLQ-PR25 at every clinic visit between 2004 and 2008, totaling 633 assessments. Confirmatory factor analysis and Rasch analysis were used to evaluate the domain- and item-level psychometric properties.Results: The results supported the unidimensionality of each of the four EORTC QLQ-PR25 domains (urinary, bowel, and hormonal-treatment-related symptoms, and sexual functioning). Item calibrations for each domain were found invariant across the three assessment time periods. The item-person maps showed 71.3% of item coverage for the urinary symptoms domain and 13-42.7% for the other three domains.Conclusions: The Taiwan Chinese Version of the EORTC QLQ-PR25 questionnaire is reliable and can be used to measure HRQOL over time. Adding new items to each domain may improve its clinical content coverage and measurement precision.

KW - EORTC QLQ-PR25

KW - Health-related quality of life

KW - Item response theory

KW - Prostate cancer

KW - Rasch analysis

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Psychometric evaluation of the Taiwan Chinese version of the EORTC QLQ-PR25 for HRQOL assessment in prostate cancer patients

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