Table 2:

Logistic regression models identifying associations with preparedness to act as a substitute decision-maker and acceptability of high school education around substitute decision-making and critical care

VariableOR (95% CI)
Self-reported preparedness to act as substitute decision-maker for adult loved oneBelief that 16-year-olds should learn about resuscitation and end of life
Age, yr
 16–17ReferenceReference
 18–341.13 (0.30–4.17)0.11 (0.01–1.16)
 35–493.29 (0.69–15.57)0.07 (0.01–0.78)
 50–647.46 (1.25–44.51)0.10 (0.01–1.08)
 > 643.44 (0.64–18.52)0.11 (0.01–1.23)
Gender
 FemaleReferenceReference
 Male1.64 (0.98–2.74)1.16 (0.71–1.89)
Health care professional
 Yes1.74 (0.53–5.75)0.67 (0.28–1.59)
 NoReferenceReference
Province
 OntarioReferenceReference
 Quebec0.53 (0.26–1.08)1.02 (0.50–2.07)
 Other1.70 (0.19–15.14)1.16 (0.20–6.87)
Education
 Did not complete high schoolReferenceReference
 High school diploma0.76 (0.18–3.24)1.30 (0.20–8.62)
 Some college/university0.86 (0.20–3.70)1.01 (0.16–6.23)
 College/university diploma0.66 (0.15–2.90)1.22 (0.20–7.52)
 Working on or completed postgraduate studies1.46 (0.25–8.43)0.90 (0.13–6.02)
 Professional degree0.35 (0.05–2.29)1.24 (0.15–10.11)
Previously acted as substitute decision-maker0.98 (0.37–2.57)0.77 (0.37–1.60)
Previously participated in advance care planning for self2.01 (1.06–3.83)1.71 (0.96–3.07)
Belief that one will have to act as substitute decision-maker2.36 (1.34–4.17)1.90 (1.07–3.37)
Had previous conversation with loved ones about wishes in critical illness1.23 (0.72–2.08)1.20 (0.72–2.01)
Willing to initiate conversation with loved ones about wishes in critical illness1.47 (0.84–2.57)
Belief that having conversation with loved ones about wishes in critical illness is learnable skill2.57 (1.37–4.80)
Self-reported preparedness0.98 (0.55–1.74)
  • Note: CI = confidence interval, OR = odds ratio.