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Table 2 Characteristics of studies included in the scoping review

From: Development of a core outcome set for the evaluation of interventions to enhance trial participation decisions on behalf of adults who lack capacity to consent: a mixed methods study (COnSiDER Study)

Lead author name Publication date Setting Type of decision Self or proxy decision Outcome domains
Juraskova et al. [42] 2015 Oncology
Australia and New Zealand
Participation in breast cancer trial Self Anxiety/depression; attitudes towards participating; decisional conflict; involvement preferences; actual (objective) understanding; perceived (subjective) understanding
Politi et al. [43] 2016 Oncology
USA
Participation in cancer trial (multiple cancers and trials) Self Clarity of opinion about participating; decision readiness; decisional conflict; intent to participate; knowledge; self-efficacy
Sundaresan et al. [44] 2017 Oncology
Australia and New Zealand
Participation in prostate cancer trial Self Anxiety/depression; decisional regret; decisional conflict; knowledge
Robertson et al. [45] 2019 Oncology
Australia
Participation in acute lymphoblastic leukaemia trial (children and young people) Self Acceptability of DA; decisional conflict; emotional safety; feasibility; involvement in decision-making; knowledge
Cox et al. [32] 2012 Intensive care
USA
Prolonged mechanical ventilation provision in critical illness Proxy Acceptability of DA; conflict with physicians; decisional conflict; feasibility; physician-surrogate discordance; quality of communication; trust in physician; comprehension of relevant information
Einterz et al. [33] 2014 Nursing homes
USA
Treatment decisions for person with advanced dementia Proxy Clinician–surrogate concordance; involvement in decision-making; knowledge; quality of communication; satisfaction with care
Hanson et al. [34] 2011 Nursing homes
USA
Feeding options in advanced dementia Proxy Clinician–surrogate concordance; decisional regret; frequency of communication with health care providers; involvement in decision-making; knowledge
Snyder et al. [35] 2013 Nursing homes
USA
Feeding options in advanced dementia Proxy Decisional conflict; knowledge
White et al. [39] 2012 Intensive care
USA
Decisions about treatment options in critical illness Proxy Acceptability of DA; decisional confidence; feasibility; perceived effectiveness of DA; quality of communication; self-efficacy
Cox et al. [40] 2019 Intensive care
USA
Decision about prolonged mechanical ventilation provision in critical illness Proxy Anxiety/depression; clinician–surrogate concordance; decisional conflict; perception of care centeredness; quality of communication; comprehension of relevant information
Hanson et al. [41] 2017 Nursing homes
USA
Treatment decisions for person with advanced dementia Proxy Advance Care Planning problem score; satisfaction with decision; decisional conflict; involvement in decision-making; quality of communication; satisfaction with care
Lord et al. [36] 2017 Memory clinics
UK
Dementia family carers deciding about place of care Proxy Acceptability of DA; anxiety/depression; decisional conflict
Malloy-Weir and Kirk [37] 2017 Nursing homes
Canada
Initiation of antipsychotic medications for person with dementia Proxy Satisfaction with decision; decisional conflict; knowledge
Mitchell et al. [38] 2001 Acute care
Canada
Placement of a percutaneous endoscopic gastrostomy tube for older adult > 65 with cognitive impairment Proxy Acceptability of DA; decisional conflict; knowledge