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Content identification of the IWQOL-Lite with the International Classification of Functioning, Disability and Health

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Abstract

Introduction

The identification of the content of a measure could ensure that the most appropriate measure is chosen to meet a particular objective. Mapping the Impact of Weight on Quality Of Life (IWQOL-Lite) to the International Classification of Functioning, Disability and Health (ICF) will improve the understanding of its structure and aid in the interpretation of the results.

Methods

A mapping exercise was performed by 21 raters using the Delphi technique to identify the ICF codes that best describe the content of the items of the IWQOL-Lite. Both French and English versions were linked to validate the French translation. The results were validated on a sample of 122 participants and were also compared to the mapping performed by another group.

Results

Most of the content of the IWQOL-Lite was identified. All five components of the ICF were represented in the IWQOL-Lite. The mapping differed across languages. The results of the mapping were similar to those obtained by another group.

Conclusions

The content of the IWQOL-Lite is compatible with the ICF. The measure has good content validity. The content could be improved by the addition and the specification of some terms. The French translation of some items should be revised.

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Abbreviations

ICF:

International Classification of Functioning, Disability and Health

IWQOL-Lite:

Impact of weight on quality of life-lite questionnaire

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Acknowledgments

I would like to thank the members of the panel for the mapping exercise, for sharing their expertise, and giving generously their time for this study.

Conflict of interest

The authors have no competing interests.

Author information

Authors and Affiliations

  1. School of Physical and Occupational Therapy, McGill University, Montreal, QC, Canada

    Annie Tessier & Nancy E. Mayo

  2. Division of Clinical Epidemiology, Health Center, Royal Victoria Hospital, McGill University, Montreal, QC, Canada

    Nancy E. Mayo

  3. ICF Research Branch of WHO FIC CC (DIMDI), Institute of Health and Rehabilitation Sciences, Ludwig Maximilian University, Munich, Germany

    Alarcos Cieza

  4. Royal Victoria Hospital, Division of Clinical Epidemiology, 687 Pine Avenue West, Ross 4.17, Montreal, QC, H3A 1A1, Canada

    Annie Tessier

Authors
  1. Annie Tessier
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  2. Nancy E. Mayo
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  3. Alarcos Cieza
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Corresponding author

Correspondence to Annie Tessier.

Additional information

Annie Tessier developed the specific research questions pertaining to the study, conducted the consensus exercise, performed the statistical analysis, and wrote the manuscript. Nancy E Mayo directed Annie Tessier to the topic, provided expertise in research methodology, analytical decisions, and substantial input in the editing. Alarcos Cieza carried the study that was used to validate the present mapping and contributed to the revision of the manuscript.

Appendix: ICF core sets for obesity

Appendix: ICF core sets for obesity

See Tables 5, 6, 7 and 8

Table 5 Body structures
Full size table
Table 6 Body functions
Full size table
Table 7 Activity and participation
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Table 8 Environment
Full size table

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Tessier, A., Mayo, N.E. & Cieza, A. Content identification of the IWQOL-Lite with the International Classification of Functioning, Disability and Health. Qual Life Res 20, 467–477 (2011). https://doi.org/10.1007/s11136-010-9787-1

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  • DOI: https://doi.org/10.1007/s11136-010-9787-1

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