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J Pain Symptom Manage · Dec 2019
Randomized Controlled TrialBrief English and Spanish Survey Detects Change in Response to Advance Care Planning Interventions.
- Ying Shi, Deborah E Barnes, John Boscardin, John J You, Daren K Heyland, Aiesha M Volow, Michelle Howard, and Rebecca L Sudore.
- Division of Geriatrics, Department of Medicine, University of California, San Francisco, California, USA; San Francisco Veterans Affairs Health Care System, San Francisco, California, USA. Electronic address: Ying.Shi@ucsf.edu.
- J Pain Symptom Manage. 2019 Dec 1; 58 (6): 1068-1074.e5.
ContextThe validated 82-item Advance Care Planning (ACP) Engagement Survey measures a broad range of ACP behaviors but is long.ObjectivesDetermine whether shorter survey versions (55-item, 34-item, 15-item, 9-item, and 4-item versions) can detect similar change in response to two well-validated ACP interventions and provide practical effect size information.MethodsWe assessed ACP engagement for 986 English- and Spanish-speaking adults in a randomized trial of PREPARE vs. an advance directive-only study arms. The survey was administered at baseline, one week, three months, six months, and 12 months. We calculated mean change scores from baseline to follow-up time points by study arm, intraclass correlation coefficients of change scores between the 82-item survey with shorter versions, and within-group and between-group effect sizes of the mean change scores.ResultsShorter survey versions were able to detect within-group and between-group changes at all time points. Within-group intraclass correlations of the 82-item to shorter versions were high (0.78-0.97), and the amount of between-group differences was comparable using all survey versions. Twelve-month within-group effect sizes ranged narrowly from 0.76 to 1.05 for different survey versions in the PREPARE arm and from 0.44 to 0.64 for the advance directive-only version. Between-group effect sizes ranged narrowly from 0.24 to 0.30 for different survey versions. Results were similar when stratified by English and Spanish speakers.ConclusionShorter versions of the ACP Engagement Survey were able to detect within-group and between-group changes comparable with the 82-item version and can be useful for efficiently and effectively measuring ACP engagement in research and clinical settings.Copyright © 2019 American Academy of Hospice and Palliative Medicine. All rights reserved.
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