Table 2.

Association between Decision-Maker Type and Agreement with the Use of Assisted Dying in Advanced Dementia^a

Characteristic	Total No. (%) of Decision- Makers with Characteristic (N=218)	No. (%) of Decision-Makers Agreeing with Assisted Dying (N=92)		Odds Ratiob for Agreement with Assisted Dying (95% Confidence Interval)
		Characteristic Present	Characteristic Absent	Unadjusted	Adjusted
Surrogates (versus physicians)	156 (71.6)	79 (36.2)	13 (6.0)	3.87 (1.94, 7.69)e	3.87 (1.94, 7.69)
Covariates
Age > 55 (median)c	106 (48.8)	54 (24.9)	38 (17.5)	1.99 (1.15, 3.45)e
Femalec	133 (61.3)	62 (28.6)	30 (13.8)	1.57 (0.90, 2.76)
No religion (versus any)c	45 (21.4)	24 (11.4)	67 (31.9)	1.67 (0.86, 3.24)
Any prior major treatment decision in dementiac,d	97 (44.9)	29 (13.4)	61 (28.2)	0.41 (0.23, 0.71)e

^aDecision-makers were 42.2% (N=92/218) agreeing with the use of assisted dying in advanced dementia.

^bLogistic regression was used in all analyses, and unadjusted and adjusted odds ratio were computed.

^cThe total number of missing values was: age, N=1; female, N=1; no religion, N=8 (missing values, N=3; refused, N=5); and any prior major treatment decision, N=2.

^dDecision-makers reported whether they had or had not previously made any major decision about the use of antibiotics and/or artificial hydration for a person with advanced dementia.

^eVariables that were significant at P < 0.10 in bivariable analyses and entered into the multivariable model.