Assessment of the psychometric properties of an English version of the cancer dyspnea scale in people with advanced lung cancer.
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2012-11
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Abstract
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Dyspnea is a poorly understood subjective sensation. Existing dyspnea measures fail to adequately address its multidimensionality. A Japanese group developed and validated the Cancer Dyspnea Scale (CDS) for assessing dyspnea in patients with advanced lung cancer.Objectives
We evaluated the validity and reliability of the English version of the CDS (CDS-E) that has 12 items and takes, on average, 140 seconds for individuals to complete.Methods
Eligible patients had advanced lung cancer, consented, and were fluent in English. Participants completed a 100 mm visual analogue scale (VAS), the modified Borg scale, the CDS-E, the Hospital Anxiety and Depression Scale, and the Functional Assessment of Cancer Therapy--Lung quality-of-life scale. Demographic, radiographic, and treatment information were obtained from patients' medical records.Results
One hundred twelve participants were enrolled at three sites in the U.S., Australia, and the U.K. Mean age was 64.5 years (SD 11.5); 90% were Caucasian, 68% had Eastern Cooperative Oncology Group performance status 0-1, and 50% had non-small cell carcinoma. All completed the CDS-E independently, without difficulty. The CDS-E had reasonable internal consistency overall (Cronbach's α = 0.71) and for each of the three factors (effort, anxiety, discomfort Cronbach's α = 0.80-0.84). CDS-E scores were significantly correlated with the 100mm VAS (r = 0.82; P < 0.001) and the modified Borg (r = 0.87; P < 0.001). After factor analysis, the CDS-E was revised by removing three items (r-CDS-E).Conclusion
The CDS-E and r-CDS-E are reliable and valid measures of the sensation and the psychological components of dyspnea, with the shorter version having similar psychometric properties.Type
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Uronis, Hope E, Rebecca A Shelby, David C Currow, Sam H Ahmedzai, Hayden B Bosworth, April Coan and Amy P Abernethy (2012). Assessment of the psychometric properties of an English version of the cancer dyspnea scale in people with advanced lung cancer. Journal of pain and symptom management, 44(5). pp. 741–749. 10.1016/j.jpainsymman.2011.10.027 Retrieved from https://hdl.handle.net/10161/30048.
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Hope Elizabeth Uronis
Rebecca A Shelby
Rebecca Shelby, Ph.D. is an Associate Professor with Tenure in the Department of Psychiatry and Behavioral Sciences at Duke University and the Director of Education and Training for the Duke Cancer Patient Support Program. Dr. Shelby is a member of the Duke Pain Prevention and Treatment Research Program and the Duke Cancer Control and Population Sciences Program. Dr. Shelby completed her graduate training in clinical psychology at the Ohio State University and her clinical internship and postdoctoral fellowship at Duke University Medical Center. Her research focuses on developing and evaluating behavioral interventions for cancer patients, management of cancer pain and treatment side effects, and improving adherence to recommended care. Dr. Shelby serves on the Duke clinical psychology internship faculty and supervises clinical psychology fellows, interns, and clinical psychology graduate practicum students completing clinical rotations as part of the Duke Cancer Patient Support Program.
Hayden Barry Bosworth
Dr. Bosworth is a health services researcher and Deputy Director of the Center of Innovation to Accelerate Discovery and Practice Transformation (ADAPT) at the Durham VA Medical Center. He is also Vice Chair of Education and Professor of Population Health Sciences. He is also a Professor of Medicine, Psychiatry, and Nursing at Duke University Medical Center and Adjunct Professor in Health Policy and Administration at the School of Public Health at the University of North Carolina at Chapel Hill. His research interests comprise three overarching areas of research: 1) clinical research that provides knowledge for improving patients’ treatment adherence and self-management in chronic care; 2) translation research to improve access to quality of care; and 3) eliminate health care disparities.
Dr. Bosworth is the recipient of an American Heart Association established investigator award, the 2013 VA Undersecretary Award for Outstanding Achievement in Health Services Research (The annual award is the highest honor for VA health services researchers), and a VA Senior Career Scientist Award. In terms of self-management, Dr. Bosworth has expertise developing interventions to improve health behaviors related to hypertension, coronary artery disease, and depression, and has been developing and implementing tailored patient interventions to reduce the burden of other chronic diseases. These trials focus on motivating individuals to initiate health behaviors and sustaining them long term and use members of the healthcare team, particularly pharmacists and nurses. He has been the Principal Investigator of over 30 trials resulting in over 400 peer reviewed publications and four books. This work has been or is being implemented in multiple arenas including Medicaid of North Carolina, private payers, The United Kingdom National Health System Direct, Kaiser Health care system, and the Veterans Affairs.
Areas of Expertise: Health Behavior, Health Services Research, Implementation Science, Health Measurement, and Health Policy
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