Development and refinement of the WAItE: a new obesity-specific quality of life measure for adolescents

Quality of Life Research : an International Journal of Quality of Life Aspects of Treatment, Care and Rehabilitation
Yemi OluboyedeAndrew Hill

Abstract

Few weight-specific outcome measures, developed specifically for obese and overweight adolescents, exist and none are suitable for the elicitation of utility values used in the assessment of cost effectiveness. The development of a descriptive system for a new weight-specific measure. Qualitative interviews were conducted with 31 treatment-seeking (above normal weight status) and non-treatment-seeking (school sample) adolescents aged 11-18 years, to identify a draft item pool and associated response options. 315 eligible consenting adolescents, aged 11-18 years, enrolled in weight management services and recruited via an online panel, completed two version of a long-list 29-item descriptive system (consisting of frequency and severity response scales). Psychometric assessments and Rasch analysis were applied to the draft 29-item instrument to identify a brief tool containing the best performing items and associated response options. Seven items were selected, for the final item set; all displayed internal consistency, moderate floor effects and the ability to discriminate between weight categories. The assessment of unidimensionality was supported (t test statistic of 0.024, less than the 0.05 threshold value). The Weight-speci...Continue Reading

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Citations

Dec 7, 2018·Quality of Life Research : an International Journal of Quality of Life Aspects of Treatment, Care and Rehabilitation·Yemi OluboyedeClaire Hulme
Nov 7, 2020·Quality of Life Research : an International Journal of Quality of Life Aspects of Treatment, Care and Rehabilitation·Malcolm McNeillNora Fayed

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