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Erschienen in: Quality of Life Research 4/2019

05.12.2018

The weight-specific adolescent instrument for economic evaluation (WAItE): psychometric evaluation using a Rasch model approach

verfasst von: Yemi Oluboyede, Adam B. Smith, Andrew Hill, Claire Hulme

Erschienen in: Quality of Life Research | Ausgabe 4/2019

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Abstract

Purpose

The Weight-specific Adolescent Instrument for Economic evaluation (WAItE) is a 7-item condition-specific tool assessing the impact of weight status on seven dimensions of quality of life. The content of the WAItE was developed with both treatment-seeking and non-treatment-seeking adolescents aged 11–18 years. The aim of this study was to assess the psychometric properties of the WAItE in adolescent and adult populations.

Methods

Treatment-seeking adolescents with obesity (females n = 155; males n = 123; mean age = 13.3; 13.1 years, respectively) completed the WAItE twice. An adult general population sample completed the WAItE via an online survey (females n = 236; males n = 231; mean age = 41.2; 44.3 years, respectively). The Partial Credit Model was applied to the data and item fit evaluated against published criteria.

Results

The WAItE had a unidimensional structure both for adolescents and adults. There was no item misfit observed for either participant samples and no differential item functioning (DIF) was present by age or gender for the adolescents. Some DIF was observed across age groups for the adult sample. For the adolescent sample, stable item locations were observed over time.

Conclusions

The aim of the WAItE is to assess the impact of weight status on the lives of adolescents in cost-effectiveness evaluation of weight management programmes. The results of this study demonstrated that the WAItE has reliable psychometric properties. The instrument may therefore be used to aid informed decision around the identification of cost-effective weight management programmes in both adolescent and adult populations.
Literatur
1.
Zurück zum Zitat Griffiths, L., Parsons, T., & Hill, A. (2010). Self-esteem and quality of life in obese children and adolescents: A systematic review. International Journal of Paediatric Obesity, 5(4), 282–304.CrossRef Griffiths, L., Parsons, T., & Hill, A. (2010). Self-esteem and quality of life in obese children and adolescents: A systematic review. International Journal of Paediatric Obesity, 5(4), 282–304.CrossRef
2.
Zurück zum Zitat Tsiros, M., Olds, T., Buckley, J., Grimshaw, P., Brennan, L., Walkley, J., et al. (2009). Health-related quality of life in obese children and adolescents. International Journal of Obesity, 33, 387–400.CrossRef Tsiros, M., Olds, T., Buckley, J., Grimshaw, P., Brennan, L., Walkley, J., et al. (2009). Health-related quality of life in obese children and adolescents. International Journal of Obesity, 33, 387–400.CrossRef
3.
Zurück zum Zitat National-Institute-for-Clinical-Excellence. (April 2013). Guide to the methods of technology appraisal. National-Institute-for-Clinical-Excellence. (April 2013). Guide to the methods of technology appraisal.
4.
Zurück zum Zitat Ravens-Sieberer, U., Redegeld, M., & Bullinger, M. (2001). Quality of life after in-patient rehabilitation in children with obesity. [Research Support. Non-U.S. Gov’t]. International Journal of Obesity & Related Metabolic Disorders: Journal of the International Association for the Study of Obesity, 25(Suppl 1), S63–S65.CrossRef Ravens-Sieberer, U., Redegeld, M., & Bullinger, M. (2001). Quality of life after in-patient rehabilitation in children with obesity. [Research Support. Non-U.S. Gov’t]. International Journal of Obesity & Related Metabolic Disorders: Journal of the International Association for the Study of Obesity, 25(Suppl 1), S63–S65.CrossRef
5.
Zurück zum Zitat Kolotkin, R., Zeller, M., Modi, A., Samsa, G., Quinlan, N., Yanovski, J., et al. (2006). Assessing weight-related quality of life in adolescents. [Research Support, N.I.H., Extramural Research Support, Non-U.S. Gov’t Validation Studies]. Obesity, 14(3), 448–457.CrossRefPubMed Kolotkin, R., Zeller, M., Modi, A., Samsa, G., Quinlan, N., Yanovski, J., et al. (2006). Assessing weight-related quality of life in adolescents. [Research Support, N.I.H., Extramural Research Support, Non-U.S. Gov’t Validation Studies]. Obesity, 14(3), 448–457.CrossRefPubMed
6.
Zurück zum Zitat Moorehead, M., Ardelt-Gattinger, E., Lechner, H., & Oria, H. (2003). The validation of the Moorehead-Ardelt Quality of Life Questionnaire II. Obesity Surgery, 13(5), 684–692.CrossRefPubMed Moorehead, M., Ardelt-Gattinger, E., Lechner, H., & Oria, H. (2003). The validation of the Moorehead-Ardelt Quality of Life Questionnaire II. Obesity Surgery, 13(5), 684–692.CrossRefPubMed
7.
Zurück zum Zitat Zeller, M., & Modi, A. (2009). Development and initial validation of an obesity-specific quality-of-life measure for children: sizing me up. Obesity, 17(6), 1171–1177.PubMed Zeller, M., & Modi, A. (2009). Development and initial validation of an obesity-specific quality-of-life measure for children: sizing me up. Obesity, 17(6), 1171–1177.PubMed
8.
Zurück zum Zitat Morales, L., Edwards, T., Flores, Y., Barr, L., & Patrick, D. (2011). Measurement properties of a multicultural weight-specific quality-of-life instrument for children and adolescents. [Validation Studies]. Quality of Life Research, 20(2), 215–224.CrossRefPubMed Morales, L., Edwards, T., Flores, Y., Barr, L., & Patrick, D. (2011). Measurement properties of a multicultural weight-specific quality-of-life instrument for children and adolescents. [Validation Studies]. Quality of Life Research, 20(2), 215–224.CrossRefPubMed
9.
Zurück zum Zitat Brazier, J., Ratcliffe, J., Salomon, J., & Tsuchiya, A. (2007). Measuring and valuing health benefits for economic evaluation. Oxford: Oxford University Press. Brazier, J., Ratcliffe, J., Salomon, J., & Tsuchiya, A. (2007). Measuring and valuing health benefits for economic evaluation. Oxford: Oxford University Press.
11.
Zurück zum Zitat Oluboyede, O. (2013). Quality of life assessment in adolescent obesity: Development of a new instrument for economic evaluation. Leeds: University of Leeds. Oluboyede, O. (2013). Quality of life assessment in adolescent obesity: Development of a new instrument for economic evaluation. Leeds: University of Leeds.
15.
16.
Zurück zum Zitat Gately, P., Cooke, C., Barth, J., Bewick, B., Radley, D., & Hill, A. (2005). Children’s residential weight-loss programs can work: A prospective cohort study of short-term outcomes for overweight and obese children. Pediatrics, 116(1), 73–77.CrossRefPubMed Gately, P., Cooke, C., Barth, J., Bewick, B., Radley, D., & Hill, A. (2005). Children’s residential weight-loss programs can work: A prospective cohort study of short-term outcomes for overweight and obese children. Pediatrics, 116(1), 73–77.CrossRefPubMed
17.
Zurück zum Zitat Linacre, J. (2014). A user’s guide to Winsteps. Linacre, J. (2014). A user’s guide to Winsteps.
18.
Zurück zum Zitat Rasch, G. (1960). Probabilistic models for some intelligence and attainment tests. Chicago: University of Chicago Press. Reprinted 1980. Rasch, G. (1960). Probabilistic models for some intelligence and attainment tests. Chicago: University of Chicago Press. Reprinted 1980.
21.
Zurück zum Zitat Raîche, G. (2005). Critical eigenvalue sizes (variances) in standardized residual principal components analysis. Rasch Measurement Transactions, 19:1, 1012. Raîche, G. (2005). Critical eigenvalue sizes (variances) in standardized residual principal components analysis. Rasch Measurement Transactions, 19:1, 1012.
22.
Zurück zum Zitat Lord, F. (1980). Applications of item response theory to practical testing problems. Hillsdale: Lawrence Erlbaum Associates. Lord, F. (1980). Applications of item response theory to practical testing problems. Hillsdale: Lawrence Erlbaum Associates.
Metadaten
Titel
The weight-specific adolescent instrument for economic evaluation (WAItE): psychometric evaluation using a Rasch model approach
verfasst von
Yemi Oluboyede
Adam B. Smith
Andrew Hill
Claire Hulme
Publikationsdatum
05.12.2018
Verlag
Springer International Publishing
Erschienen in
Quality of Life Research / Ausgabe 4/2019
Print ISSN: 0962-9343
Elektronische ISSN: 1573-2649
DOI
https://doi.org/10.1007/s11136-018-2074-2

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