Table 5.

Patient Demographic and Clinical Characteristics by Admission Time for Each Stroke Subtype

Stroke Subtype	IS (n=20 758)					SAH (n=3899)					ICH (n=11 111)
Admission Time	W	O	P Value*	N	P Value*	W	O	P Value*	N	P Value*	W	O	P Value*	N	P Value*
Number, %	9275 (44.7)	9630 (46.4)		1853 (8.9)		1407 (36.1)	1886 (48.4)		606 (15.5)		4436 (39.9)	5434 (48.9)		1241 (11.2)
Male, %	56.7	55.2	0.047	60.7	<0.001	33.6	31.9	0.289	34.5	0.705	57.3	55.8	0.134	44.7	0.208
Age mean (SD)	74.2 (12.4)	74.5 (12.5)	0.046	71.4 (13.0)	<0.001	64.0 (14.6)	64.6 (14.7)	0.219	61.2 (15.3)	<0.001	71.3 (13.7)	69.6 (13.6)	<0.001	67.2 (14.3)	<0.001
Comorbidity, %
Hypertension	68.5	68.6	0.930	67.6	0.411	88.2	86.2	0.085	84.2	0.013	83.5	89.6	<0.001	90.1	<0.001
Diabetes mellitus	28.0	26.1	0.003	26.2	0.111	24.1	23.3	0.610	21.5	0.198	18.9	19.8	0.215	22.6	0.004
Hyperlipidemia	35.9	32.3	<0.001	32.0	0.002	28.8	29.6	0.594	28.7	0.974	16.3	15.1	0.107	15.9	0.734
Smoking history (n=30 179) (%)	30.9	28.8	0.002	33.1	0.092	28.7	27.7	0.550	28.9	0.943	28.5	27.7	0.388	29.6	0.492
JCS, %
0	47.3	42.1	<0.001	42.2	<0.001	24.5	17.9	<0.001	16.5	<0.001	24.1	19.2	<0.001	16.0	<0.001
1‐digit code	38.2	40.2		38.5		24.5	22.9		23.4		40.6	38.2		32.1
2‐digit code	9.6	11.5		11.7		17.8	18.0		18.2		16.4	18.9		20.4
3‐digit code	4.8	6.3		7.7		33.3	41.3		41.9		19.0	23.8		31.5
Ambulance admission (%)	46.9	62.8	<0.001	77.1	<0.001	72.2	80.9	<0.001	86.6	<0.001	63.9	78.7	<0.001	85.4	<0.001

ICH indicates intracerebral hemorrhage; IS, ischemic stroke; JCS, Japan Coma Scale; SAH, subarachnoid hemorrhage.

^*Off‐hour (O) and Nighttime (N) were separately compared with Working‐hour (W).