Table 3 Comparison analysis of association between physical ability and general characteristics in 2015 (N=3,463)

2015	ADL (n=3,463)					IADL (n=3,463)
	–Average		+Average		p-value1)	–Average		+Average		p-value1)
	N	%	N	%		N	%	N	%
Age (yr)					<.001					<.001
18–29	13	1.5	846	98.5		65	7.6	794	92.4
30–39	9	1.3	706	98.7		28	3.9	687	96.1
≥40	160	8.5	1,729	91.5		261	13.8	1,628	86.2
Marital status					<.001					<.001
Married	83	3.6	2,234	96.4		165	7.1	2,152	92.9
Others2)	99	8.6	1,047	91.4		189	16.5	957	83.5
Gender		0.0			0.031					0.548
Male	64	4.3	1,420	95.7		157	10.6	1,327	89.4
Female	118	6.0	1,861	94.0		197	10.0	1,782	90.0
Health condition					<.001					<.001
Unhealthy	133	11.7	1,003	88.3		209	18.4	927	81.6
Healthy	49	2.1	2,278	97.9		145	6.2	2,182	93.8
Insurance status										<.001
No insurance	138	8.9	1,407	91.1		246	15.9	1,299	84.1
Have insurance	44	2.3	1,874	97.7		108	5.6	1,810	94.4
Education					<.001					<.001
Elementary	95	9.8	877	90.2		171	17.6	801	82.4
Junior high school	18	3.9	443	96.1		41	8.9	420	91.1
Senior high school	55	5.4	959	94.6		113	11.1	901	88.9
College/University	14	1.4	1,002	98.6		29	2.9	987	97.1
Residence										0.135
Urban	175	5.1	3,225	94.9		344	10.1	3,056	89.9
Rural	7	11.1	56	88.9		10	15.9	53	84.1

Note: Chi-square test.
Separated, single, divorced, widow/er, cohabitate.
ADL, Activities of Daily Living; IADL, Instrumental Activities of Daily Living.