Table 2.

Characteristics of ACT Participants With Dementia (quantitative variables)

	Full sample (N = 848)	Missing data (N = 88)	Excluded, not kinless (N = 696)	Kinless (N = 64)
Age
Mean	85	84	85	87
Median	86	85	86	88
Standard deviation	6	6	6	7
Range	63–103	68–98	67–102	71–103
Years of education completed
Mean	14	14	14	14
Median	13	14	14	13
Standard deviation	3	2	3	4
Range	4–21	8–19	4–21	6–21
Number of ADLs difficult at onset
Missing	N = 158 (19%)	N = 77 (88%)	N = 72 (10%)	N = 9 (14%)
Mean	1.5		1.5	1.6
Median	1		1	0
Standard deviation	1.8		1.8	2.1
Range	0–6		0–6	0–6
Number of IADLs difficult at onset
Missing	N = 183 (22%)	N = 77 (88%)	N = 96 (14%)	N = 10 (16%)
Mean	1.5		1.6	1.7
Median	1		1	1
Standard deviation	1.8		1.7	1.8
Range	0–6		0–5	0–5
Charlson Comorbidity Score
Mean	0.6	0.8	0.6	0.3
Median	0	0	0	0
Standard deviation	1.4	1.6	1.4	1.0
Range	0–9	0–8	0–9	0–5
Klabunde Comorbidity Score
Mean	1.9	2.0	1.9	1.6
Median	1.0	1.0	1.0	1.0
Standard deviation	2.1	2.3	2.1	1.8
Range	0–11	0–9	0–11	0–8

Notes: ACT = Adult Changes in Thought; ADL = activity of daily living; IADL = instrumental activity of daily living.