Ana Maria Rodriguez1, Saul Frenkiel2,3, Justin Desroches4, Avina De Simone4, Francois Chiocchio5, Christina MacDonald6, Martin Black2,3, Anthony Zeitouni2,7, Michael Hier2,3, Karen Kost2,7, Alex Mlynarek2,3,7, Clara Bolster-Foucault8, Zeev Rosberger8,9,10, Melissa Henry2,3,8,10,11,12. 1. School of Physical and Occupational Therapy, McGill University, Montreal, Canada. 2. Department of Otolaryngology - Head and Neck Surgery, McGill University, Montreal, Canada. 3. Department of Otolaryngology - Head and Neck Surgery, Jewish General Hospital, Montreal, Canada. 4. Faculty of Medicine, McGill University, McGill University, Montreal, Canada. 5. Telfer School of Management, University of Ottawa, Ottawa, Canada. 6. Department of Nursing, Jewish General Hospital, Montreal, Canada. 7. Department of Otolaryngology - Head and Neck Surgery, McGill University Health Centre, Montreal, Canada. 8. Lady Davis Institute for Medical Research, Jewish General Hospital, Montreal, Canada. 9. Department of Psychology, McGill University, Montreal, Canada. 10. Department of Oncology, McGill University, Montreal, Canada. 11. Department of Psychology, Jewish General Hospital, Montreal, Canada. 12. Department of Oncology, Jewish General Hospital, Montreal, Canada.
Abstract
OBJECTIVE: The aim of this study was to develop and validate a patient-reported outcome measure to evaluate body image concerns in head and neck cancer (HNC) patients. METHODS: Items were created using a combination of deductive (eg, US Food and Drug Administration Qualification of Clinical Outcome Assessments, literature review) and inductive approaches (eg, subject matter experts, HNC patients). Items were translated for use in both Canadian English and Canadian French using back-translation. A two-step empirical validation process using the Classical Test Theory (CTT) and Rasch Measurement Theory (RMT) was conducted with 224 and 258 HNC patients, respectively, having undergone disfiguring surgery within the past 3 years. RESULTS: Analyses suggest two subscales for MBIS-HNC: social discomfort (10 items) and negative self-image (11 items). The McGill Body Image Concerns Scale-Head and Neck Cancer (MBIS-HNC) is reliable with high internal consistency (0.98), high test-retest reliability over a two-week period (ICC = 0.88), moderate to high convergent validity (range r = 0.43-0.81), and divergent validity (range r = 0.12-0.15). RMT was used in addition to CTT. Disordered thresholds led to the modification of the number of response options, and items were deleted based on differential item functioning and high local dependency. Unidimensionality of both subscales and supporting a total score was confirmed. The measure was however characterized by the presence of an important floor effect, confirmed with poor targeting as demonstrated by the person-item threshold distribution. CONCLUSION: Evidence gathered from our theory-driven validation study using CTT and RMT provides practitioners and researchers with a useful and easy to use self-report measure.
OBJECTIVE: The aim of this study was to develop and validate a patient-reported outcome measure to evaluate body image concerns in head and neck cancer (HNC) patients. METHODS: Items were created using a combination of deductive (eg, US Food and Drug Administration Qualification of Clinical Outcome Assessments, literature review) and inductive approaches (eg, subject matter experts, HNC patients). Items were translated for use in both Canadian English and Canadian French using back-translation. A two-step empirical validation process using the Classical Test Theory (CTT) and Rasch Measurement Theory (RMT) was conducted with 224 and 258 HNC patients, respectively, having undergone disfiguring surgery within the past 3 years. RESULTS: Analyses suggest two subscales for MBIS-HNC: social discomfort (10 items) and negative self-image (11 items). The McGill Body Image Concerns Scale-Head and Neck Cancer (MBIS-HNC) is reliable with high internal consistency (0.98), high test-retest reliability over a two-week period (ICC = 0.88), moderate to high convergent validity (range r = 0.43-0.81), and divergent validity (range r = 0.12-0.15). RMT was used in addition to CTT. Disordered thresholds led to the modification of the number of response options, and items were deleted based on differential item functioning and high local dependency. Unidimensionality of both subscales and supporting a total score was confirmed. The measure was however characterized by the presence of an important floor effect, confirmed with poor targeting as demonstrated by the person-item threshold distribution. CONCLUSION: Evidence gathered from our theory-driven validation study using CTT and RMT provides practitioners and researchers with a useful and easy to use self-report measure.
Keywords:
Classical Test Theory; McGill Body Image Concerns Scale (MBIS); Rasch Measurement Theory; body image; disfigurement; functional impairment; head and neck cancer; quality of life
Authors: Melissa Henry; Justine G Albert; Saul Frenkiel; Michael Hier; Anthony Zeitouni; Karen Kost; Alex Mlynarek; Martin Black; Christina MacDonald; Keith Richardson; Marco Mascarella; Gregoire B Morand; Gabrielle Chartier; Nader Sadeghi; Christopher Lo; Zeev Rosberger Journal: Front Psychol Date: 2022-03-24
Authors: Justine G Albert; Christopher Lo; Zeev Rosberger; Saul Frenkiel; Michael Hier; Anthony Zeitouni; Karen Kost; Alex Mlynarek; Martin Black; Christina MacDonald; Keith Richardson; Marco Mascarella; Gregoire B Morand; Gabrielle Chartier; Nader Sadeghi; Khalil Sultanem; George Shenouda; Fabio L Cury; Melissa Henry Journal: Curr Oncol Date: 2022-06-22 Impact factor: 3.109
Authors: Marco A Mascarella; Gregoire B Morand; Michael P Hier; Alexander Mlynarek; Justine G Albert; David Kissane; Melissa Henry Journal: Curr Oncol Date: 2022-09-19 Impact factor: 3.109
Authors: David Macias; Brittany N Hand; Patrik Pipkorn; Amy M Williams; Steven S Chang; Joseph Zenga; Marci L Nilsen; Bethany A Rhoten; Andrew T Huang; Nosayaba Osazuwa-Peters; Stacey Maurer; Wendy Balliet; Hong Li; Kenneth J Ruggiero; Katherine R Sterba; Evan M Graboyes Journal: Front Psychol Date: 2021-12-10