Table 1

Characteristics of patients 65 years of age or older* (n=4223)

Variable	Classification	Distribution (%)
Variable	Classification	Male (n=1495)	Female (n=2728)
Age (years)	65–69	9.5	3.6
	70–79	33.8	23.1
	80–89	44.6	49.7
	90–99	11.5	22.3
	100 or older	0.5	1.4
Primary disease	Circulatory disease	12.9	14.0
	Cerebral infarction	20.0	9.6
	Osteoarthritis	1.5	4.9
	Fracture/osteoporosis	1.0	5.6
	Rheumatoid arthritis	0.7	2.9
	Amyotrophic lateral sclerosis	1.7	0.7
	Dementia	11.6	19.6
	Parkinson’s disease	4.3	3.8
	Other neurological disease	3.5	3.0
	Chronic respiratory failure	6.4	3.9
	Cancer	6.9	3.0
	Renal failure	1.5	1.0
	Other	16.2	14.5
	Unknown	11.9	13.5
Living arrangement	Home	77.6	69.1
	Assisted-living housing	19.3	25.5
	Special elderly nursing home	2.4	4.8
	Unknown	0.7	0.5
Family composition	Independent	30.9	39.6
	Living with spouse	32.8	12.7
	Living with family	24.2	29.9
	Living with non-family member	11.0	16.5
	Unknown	1.1	1.4

*Data shown with the patients who provided valid answer to the question regarding medication, and 65 years or older. Twenty patients whose sex was unknown were excluded.