Table 1. Baseline characteristics between ALN group and non-ALN group in 1998–2009.

Variables	Non-ALNN = 16,294		ALNN = 5,624
	n	%	n	%	p-value
Median of follow-up year, (min, max)	3.04	(0.003–11.1)	2.92	(0.003–11.1)
Sex					0.45
Women	13,770	84.5	4,729	84.1
Men	2,524	15.5	895	15.9
Age, years					0.24
<65	3,142	19.3	1,073	19.1
65–74	5,850	35.9	1,972	35.1
75–84	5,867	36.0	2,037	36.2
≥85	1,435	8.8	542	9.6
Occupation					0.03
Publica	1,832	11.2	668	11.9
Labor	7,830	48.1	2,794	49.7
Business	3,607	22.1	1,175	20.9
Low incomeb	133	0.8	33	0.6
Others	2,892	17.8	954	17.0
Comorbidity
Hypertension	11,929	73.2	4,179	74.3	0.11
Diabetes	4,411	27.1	1,520	27.0	0.95
Hyperlipidemia	7,175	44.0	2,400	42.7	0.08

^aGovernment, education, and military.

^bInsured income is lower than the level required for charging premium.

Chi-square test.