Development of a novel decision aid for drivers with dementia and its effect on decisional conflict

INTERVENTION: a) The intervention in this study is a decision aid booklet. This can be read by participants alone and unaided but may be read in the presence of others if wished. b) Each participant that receives a decision aid booklet will read it once. They will then undergo a telephone survey one week later. They may then either keep or discard the booklet. They may reread it as often as they wish. c) Every participant will be surveyed twice. The first and second telephone surveys will be conducted one week apart. No other contact will be made with participants. CONDITION: Dementia Driving retirement PRIMARY OUTCOME: Decisional conflict ‐ ; ; This will be measured using the low‐literacy decision conflict scale [O'Connor 1993]. This will form part of both telephone interviews. ; ; O’Connor AM. Low literacy decisional conflict scale. Ottawa: OHRI, 1993 (updated 2010). Available from https://decisionaid.ohri.ca/eval_dcs.html. SECONDARY OUTCOME: Booklet acceptability ‐ ; ; This will be measured using an acceptability questionnaire adapted from the Ottawa acceptability questionnaire template [O'Connor 2000]. This will form part of the last telephone interview. ; ; O’Connor AM, Cranney A. Ottawa acceptability questionnaire. Ottawa: OHRI, 2000. Available from http://decisionaid.ohri.ca/eval_accept.html. Booklet use ‐ ; ; Booklet use will be examined by establishing the length of time required to read the booklet and whether assistance was required by the reader to use it. This will form part of the last telephone interview. Decision ‐ ; ; This will be determined by asking participants what their decision is regarding driving retirement. They will be asked if they will to continue driving unchanged, drive less, stop driving now, stop driving later or other. This will form part of both telephone interviews. Decisional satisfaction ‐ ; ; Satisfaction with decision will be measured with the validated satisfaction with decision scale [Holmes‐Rovner 1996]. This will form part of the first and second interview. ; ; Holmes‐Rovner M, Kroll J, Schmitt N, Rovner DR, Breer ML, Rothert ML, Padonu G, Talarczyk G. Patient satisfaction with health care decisions: the satisfaction with decision scale. Med Decis Making 1996;16:58‐64. Knowledge ‐ ; ; This will be measured using a brief knowledge questionnaire adapted from the Ottawa knowledge questionnaire template [O'Connor 1999]. This will form part of both telephone interviews. ; ; O’Connor AM. Ottawa knowledge questionnaire. Ottawa: OHRI, 1999. Available from http://decisionaid.ohri.ca/eval_know.html. INCLUSION CRITERIA: Individuals with dementia Individuals who actively drive