Table 3.

Factor analysis of the Advance Care Planning Questionnaire

Original domain (no. of items)	New domains (no. of items)	Item	Factor loadings				Average variance extracted	Composite reliability	Keiser-Meir-Olkin
			1	2	3	4
Feelings regarding advance care planning (5) (n = 230)	Feelings regarding advance care planning (5)	Felt better to have expressed wishes in advance if I had a heart attack or on a breathing machine	0.972				0.915	0.999	0.889
		Felt better to have expressed wishes in advance if I had severe dementia	0.961
		Felt better to have expressed wishes in advance if I had a stroke	0.959
		Felt better to have expressed wishes in advance if I had cancer	0.952
		Felt better to have expressed wishes in advance if I had a road accident or in a coma	0.943
Justifications for advance care planning (7) (n = 179)	Justifications for advance care planning (4)	I hope to not burden my family with my medical treatment preferences		0.804			0.597	0.978	0.751
		I want to be able to make my own decision		0.797
		I am aware that I could possibly lose my decision making power as a result of becoming seriously ill or injured		0.773
		There may be differences in opinions between my family members		0.713
Justifications for not having advance care planning (10) (n = 55)	Fate and religion (4)	I believed that planning for my death would mean there is no hope for me			0.846		0.624	0.895	0.723
		I believed that the discussion of the topic of death was seen as “unlucky” and I tried to avoid discussing about it			0.830
		I will take it as it comes, as I have no control over my death			0.759
		I felt that it was best to leave to fate or to God			0.733
	Avoid thinking about death (3)	I do not want to think I will die or lose my memory				0.894	0.607	0.840	0.547
		I cannot imagine myself in such a situation				0.850
		I am currently healthy and there is no need to consider such decisions				0.549