Cornelis Boersma1,2, Jurjen van der Schans1,3,4, M Rifqi Rokhman5,6,7, Yulia Wardhani8, Dwi Lestari Partiningrum9, Barkah Djaka Purwanto10, Ika Ratna Hidayati11, Arofa Idha12, Jarir At Thobari8, Maarten J Postma1,3,4,13,14,15. 1. Department of Health Sciences, Unit of Global Health, University of Groningen, University Medical Center Groningen (UMCG), Ant. Deusinglaan 1, 9713 AV, Groningen, The Netherlands. 2. Faculty of Management Sciences, Open University, Heerlen, The Netherlands. 3. Institute of Science in Healthy Ageing & healthcaRE (SHARE), University Medical Center Groningen, University of Groningen, Groningen, The Netherlands. 4. Department of Economics, Econometrics and Finance, Faculty of Economics & Business, University of Groningen, Groningen, The Netherlands. 5. Department of Health Sciences, Unit of Global Health, University of Groningen, University Medical Center Groningen (UMCG), Ant. Deusinglaan 1, 9713 AV, Groningen, The Netherlands. r.rokhman@rug.nl. 6. Institute of Science in Healthy Ageing & healthcaRE (SHARE), University Medical Center Groningen, University of Groningen, Groningen, The Netherlands. r.rokhman@rug.nl. 7. Faculty of Pharmacy, Universitas Gadjah Mada, Yogyakarta, Indonesia. r.rokhman@rug.nl. 8. Faculty of Medicine, Public Health and Nursing, Universitas Gadjah Mada, Yogyakarta, Indonesia. 9. Faculty of Medicine, Universitas Diponegoro, Semarang, Indonesia. 10. Faculty of Medicine, Universitas Ahmad Dahlan, Yogyakarta, Indonesia. 11. Department of Pharmacy, Faculty of Health Science, Universitas Muhammadiyah Malang, Malang, Indonesia. 12. Dr. Syaiful Anwar Hospital, Malang, Indonesia. 13. Unit of PharmacoTherapy, Epidemiology and Economics (PTE2), Department of Pharmacy, University of Groningen, Groningen, The Netherlands. 14. Department of Pharmacology and Therapy, Faculty of Medicine, Universitas Airlangga, Surabaya, Indonesia. 15. Center of Excellence in Higher Education for Pharmaceutical Care Innovation, Universitas Padjadjaran, Bandung, Indonesia.
Abstract
OBJECTIVE: The study aimed to evaluate the psychometric properties of KDQOL-36 Bahasa Indonesia in hemodialysis (HD) and continuous ambulatory peritoneal dialysis (CAPD) patients in Indonesia. METHODS: The psychometric analysis was conducted in three hospitals offering both HD and CAPD. The validity was assessed through structural, convergent, and known-group validity, while reliability was evaluated using internal consistency and test-retest reliability. RESULTS: The study involved 370 participants of which 71% received HD treatment. No floor and ceiling effects (< 10%) were identified. Confirmatory factor analysis supported a good model fit for both generic and kidney-specific domains, while exploratory factor analysis revealed three factors for kidney-specific domains and only three items with a loading factor below 0.4. Convergent validity showed positive correlations between kidney-specific domains, generic domains, and EQ-5D. The comparison of quality of life among subgroups based on dialysis type and whether or not patients had diabetes supported the hypotheses of known-group validity. Cronbach's alpha and omega values had demonstrated good internal consistency. Test-retest reliability indicated burden of kidney disease had good reliability, while other domains had moderate reliability. CONCLUSION: The study supports the validity and reliability of both generic and kidney-specific domains of KDQOL-36 Bahasa Indonesia to evaluate quality of life in patients with HD and CAPD in Indonesia. As health-related quality of life is a crucial predictor of patient outcomes, this report contributes new evidence about validity and reliability to recommend the use of KDQOL-36 Bahasa Indonesia in dialysis centers.
OBJECTIVE: The study aimed to evaluate the psychometric properties of KDQOL-36 Bahasa Indonesia in hemodialysis (HD) and continuous ambulatory peritoneal dialysis (CAPD) patients in Indonesia. METHODS: The psychometric analysis was conducted in three hospitals offering both HD and CAPD. The validity was assessed through structural, convergent, and known-group validity, while reliability was evaluated using internal consistency and test-retest reliability. RESULTS: The study involved 370 participants of which 71% received HD treatment. No floor and ceiling effects (< 10%) were identified. Confirmatory factor analysis supported a good model fit for both generic and kidney-specific domains, while exploratory factor analysis revealed three factors for kidney-specific domains and only three items with a loading factor below 0.4. Convergent validity showed positive correlations between kidney-specific domains, generic domains, and EQ-5D. The comparison of quality of life among subgroups based on dialysis type and whether or not patients had diabetes supported the hypotheses of known-group validity. Cronbach's alpha and omega values had demonstrated good internal consistency. Test-retest reliability indicated burden of kidney disease had good reliability, while other domains had moderate reliability. CONCLUSION: The study supports the validity and reliability of both generic and kidney-specific domains of KDQOL-36 Bahasa Indonesia to evaluate quality of life in patients with HD and CAPD in Indonesia. As health-related quality of life is a crucial predictor of patient outcomes, this report contributes new evidence about validity and reliability to recommend the use of KDQOL-36 Bahasa Indonesia in dialysis centers.
Authors: Michael Koller; Neil K Aaronson; Jane Blazeby; Andrew Bottomley; Linda Dewolf; Peter Fayers; Colin Johnson; John Ramage; Neil Scott; Karen West Journal: Eur J Cancer Date: 2007-08-03 Impact factor: 9.162
Authors: T Thaweethamcharoen; W Srimongkol; P Noparatayaporn; P Jariyayothin; N Sukthinthai; N Aiyasanon; P Kitisriworapan; K Jantarakana; S Vasuvattakul Journal: Value Health Reg Issues Date: 2013-03-26
Authors: Donna L Mapes; Antonio Alberto Lopes; Sudtida Satayathum; Keith P McCullough; David A Goodkin; Francesco Locatelli; Shunichi Fukuhara; Eric W Young; Kiyoshi Kurokawa; Akira Saito; Jürgen Bommer; Robert A Wolfe; Philip J Held; Friedrich K Port Journal: Kidney Int Date: 2003-07 Impact factor: 10.612