Patients or Volunteers? The Impact of Motivation for Trial Participation on the Efficacy of Patient Decision Aids: A Secondary Analysis of a Cochrane Systematic Review
James G. Brown,
Kerry E. Joyce,
Dawn Stacey and
Richard G. Thomson
Medical Decision Making, 2015, vol. 35, issue 4, 419-435
Abstract:
Background . Efficacy of patient decision aids (PtDAs) may be influenced by trial participants’ identity either as patients seeking to benefit personally from involvement or as volunteers supporting the research effort. Aim . To determine if study characteristics indicative of participants’ trial identity might influence PtDA efficacy. Methods . We undertook exploratory subgroup meta-analysis of the 2011 Cochrane review of PtDAs, including trials that compared PtDA with usual care for treatment decisions. We extracted data on whether participants initiated the care pathway, setting, practitioner interactions, and 6 outcome variables (knowledge, risk perception, decisional conflict, feeling informed, feeling clear about values, and participation). The main subgroup analysis categorized trials as “volunteerism†or “patienthood†on the basis of whether participants initiated the care pathway. A supplementary subgroup analysis categorized trials on the basis of whether any volunteerism factors were present (participants had not initiated the care pathway, had attended a research setting, or had a face-to-face interaction with a researcher). Results . Twenty-nine trials were included. Compared with volunteerism trials, pooled effect sizes were higher in patienthood trials (where participants initiated the care pathway) for knowledge, decisional conflict, feeling informed, feeling clear, and participation. The subgroup difference was statistically significant for knowledge only ( P = 0.03). When trials were compared on the basis of whether volunteerism factors were present, knowledge was significantly greater in patienthood trials ( P
Keywords: decision making; choice behavior; decision aids; decision support techniques; patient preference; environment; motivation; patient participation (search for similar items in EconPapers)
Date: 2015
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Persistent link: https://EconPapers.repec.org/RePEc:sae:medema:v:35:y:2015:i:4:p:419-435
DOI: 10.1177/0272989X15579172
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