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Rasch analysis in the development of the NutriQoL® questionnaire, a specific health-related quality of life instrument for home enteral nutrition
- Source :
- Repositorio Institucional de la Consejería de Sanidad de la Comunidad de Madrid, Consejería de Sanidad de la Comunidad de Madrid, Journal of Patient-Reported Outcomes, Journal of Patient-Reported Outcomes, Vol 2, Iss 1, Pp 1-11 (2018)
- Publication Year :
- 2017
-
Abstract
- Background Home enteral nutrition (HEN) is a therapeutic method used in patients who are unable to ingest the required amounts of nutrients but retain a functional gastrointestinal tract. The objective of this study was to compose a specific questionnaire for measuring health-related quality of life (HRQoL) in HEN patients irrespective of their underlying condition and HEN route of administration. Methods Literature review, focus groups and semi-structured interviews were used to propose an initial version of the questionnaire which was answered by 165 participants. The responses were analyzed using the Rasch methodology. Firstly, the appropriateness of response options was assessed. Then, the differential item functioning (DIF) was evaluated. Finally, the item fit statistics, infit and outfit, were determined. Results Rasch analysis was performed on the responses given to the 43 items included in the initial questionnaire. Four items were excluded because more than 50% of respondents answered that the situation proposed did not apply to them. Seven items that showed overlapping and disordered categories were also removed. Pairwise DIF analysis were performed in subgroups defined by underlying disease and administration route. Eleven items presented DIF and were eliminated from the questionnaire. Finally, four items were deleted after analyzing the fit statistics, three of which did not fit the Rasch model and one did not belong to either of the dimensions. The final version of NutriQoL® includes 17 items. Conclusions NutriQoL® is a useful instrument to assess the HRQoL of HEN patients with any disease and any administration route.
- Subjects :
- Health related quality of life
Rasch model
030503 health policy & services
lcsh:Public aspects of medicine
Research
Health-related quality of life
Rasch analysis
Health Informatics
lcsh:RA1-1270
Differential item functioning
Focus group
behavioral disciplines and activities
humanities
03 medical and health sciences
0302 clinical medicine
Parenteral nutrition
Health Information Management
Quality of life
Pairwise comparison
In patient
030212 general & internal medicine
0305 other medical science
Psychology
Home enteral nutrition
Clinical psychology
Subjects
Details
- Database :
- OpenAIRE
- Journal :
- Repositorio Institucional de la Consejería de Sanidad de la Comunidad de Madrid, Consejería de Sanidad de la Comunidad de Madrid, Journal of Patient-Reported Outcomes, Journal of Patient-Reported Outcomes, Vol 2, Iss 1, Pp 1-11 (2018)
- Accession number :
- edsair.doi.dedup.....8866961324a460807fe9b3a0fd5ac0ef