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Title: Anticipated benefits of care (ABC): Psychometrics and predictive value in psychiatric disorders
Authors: Warden, D.
Trivedi, M.H.
Carmody, T.J.
Gollan, J.K.
Kashner, T.M.
Lind, L.
Crismon, M.L.
Rush, A.J. 
Keywords: Attitudes
Benefit of treatment
Outcome expectancies
Issue Date: Jun-2010
Citation: Warden, D., Trivedi, M.H., Carmody, T.J., Gollan, J.K., Kashner, T.M., Lind, L., Crismon, M.L., Rush, A.J. (2010-06). Anticipated benefits of care (ABC): Psychometrics and predictive value in psychiatric disorders. Psychological Medicine 40 (6) : 955-965. ScholarBank@NUS Repository.
Abstract: Background Attitudes and expectations about treatment have been associated with symptomatic outcomes, adherence and utilization in patients with psychiatric disorders. No measure of patients' anticipated benefits of treatment on domains of everyday functioning has previously been available.Method The Anticipated Benefits of Care (ABC) is a new, 10-item questionnaire used to measure patient expectations about the impact of treatment on domains of everyday functioning. The ABC was collected at baseline in adult out-patients with major depressive disorder (MDD) (n=528), bipolar disorder (n=395) and schizophrenia (n=447) in the Texas Medication Algorithm Project (TMAP). Psychometric properties of the ABC were assessed, and the association of ABC scores with treatment response at 3 months was evaluated.Results Evaluation of the ABC's internal consistency yielded Cronbach's of 0.90-0.92 for patients across disorders. Factor analysis showed that the ABC was unidimensional for all patients and for patients with each disorder. For patients with MDD, lower anticipated benefits of treatment was associated with less symptom improvement and lower odds of treatment response [odds ratio (OR) 0.72, 95% confidence interval (CI) 0.57-0.87, p=0.0011]. There was no association between ABC and symptom improvement or treatment response for patients with bipolar disorder or schizophrenia, possibly because these patients had modest benefits with treatment.Conclusions The ABC is the first self-report that measures patient expectations about the benefits of treatment on everyday functioning, filling an important gap in available assessments of attitudes and expectations about treatment. The ABC is simple, easy to use, and has acceptable psychometric properties for use in research or clinical settings. © 2009 Cambridge University Press.
Source Title: Psychological Medicine
ISSN: 00332917
DOI: 10.1017/S003329170999136X
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