Cancer Treatment Survey (CaTS): development and validation of a new instrument to measure patients' preparation for chemotherapy and radiotherapy
Version of Record online: 20 DEC 2010
Copyright © 2010 John Wiley & Sons, Ltd.
Volume 21, Issue 3, pages 307–315, March 2012
How to Cite
Schofield, P., Gough, K., Ugalde, A., Carey, M., Aranda, S. and Sanson-Fisher, R. (2012), Cancer Treatment Survey (CaTS): development and validation of a new instrument to measure patients' preparation for chemotherapy and radiotherapy. Psycho-Oncology, 21: 307–315. doi: 10.1002/pon.1896
- Issue online: 1 MAR 2012
- Version of Record online: 20 DEC 2010
- Manuscript Accepted: 9 NOV 2010
- Manuscript Revised: 8 NOV 2010
- Manuscript Received: 29 JUL 2010
- cancer preparation
Objective: Cancer patients experience high levels of pre-treatment anxiety. Chemotherapy and radiotherapy are threatening medical procedures. Preparation for these procedures should include the provision of sensory and procedural information, and addressing fears. The aim of this study was to develop a cancer treatment survey (CaTS) to assess the preparation for chemotherapy and radiotherapy in cancer patients.
Methods: Drawing on evidence for how to prepare patients for threatening procedures, items were generated by psychosocial/clinical experts and pilot tested with cancer patients. The 36-item draft CaTS was administered to 192 cancer patients commencing chemotherapy for lymphoma, breast or colon cancer. Participants also completed the Hospital Anxiety and Depression Scale (HADS) and basic medical and demographic information was recorded.
Results: A systematic process of item selection removed 11 items. Factor analysis indicated a two-factor solution, with 11 items representing sensory/psychological concerns and 14 items representing procedural concerns. The two subscales demonstrated excellent internal reliability with Cronbach's alpha both over 0.90 and the average inter-item correlation for each scale exceeded 0.30. Divergent validity was established for both CaTS subscales with the HADS-A and-T (all r<0.30). Younger participants (under 65 years of age) had significantly greater procedural concerns (p = 0.001; medium effect).
Conclusions: The CaTS is a two factor, 25-item measure that assesses sensory/psychological concerns and procedural concerns relating to cancer treatment. The instrument provides a reliable and valid outcome measure for interventions to prepare cancer patients for chemotherapy and radiotherapy. Copyright © 2010 John Wiley & Sons, Ltd.