Daily Variation in the Occurrence of Different Subtypes of Stroke
Table 2
Principal characteristics of patients in relation to stroke subtype. Differences between groups were evaluated by chi-square with Yate correction for continuity or with t-test when appropriate.
Hemorrhagic stroke
Ischemic stroke
value between the two main groups
AT
CE
CRY
LA
value among ischemic subtypes
Age mean (SD)
75.3 (11.9)
75.7 (11.5)
0.461
74.0 (10.4)
79.9 (9.8)
73.8 (12.8)
74.4 (11.0)
<0.001
Sex, M
279 (51.4)
1418 (51.5)
0.460
231 (67.0)
311 (40.8)
414 (48.3)
462 (58.5)
<0.001
Awake onset
439 (80.8)
2089 (75.8)
0.092
263 (76.2)
577 (75.7)
657 (76.6)
592 (74.9)
0.888
Previous stroke
72 (13.3)
411 (14.9)
0.351
53 (15.4)
126 (16.5)
118 (13.8)
114 (14.4)
0.442
Hypertension
394 (72.6)
1826 (66.3)
0.005
219 (63.5)
439 (57.6)
559 (65.2)
609 (77.1)
<0.001
Diabetes mellitus
101 (18.6)
681 (24.7)
0.003
97 (28.1)
160 (21.0)
196 (22.8)
228 (28.9)
<0.001
Previous myocardial infarction
49 (9.0)
339 (12.3)
0.036
53 (15.4)
104 (13.6)
100 (11.7)
82 (10.4)
0.063
Hypercholesterolemia
113 (20.8)
672 (24.4)
0.083
97 (28.1)
150 (19.7)
227 (26.5)
198 (25.1)
0.003
Permanent atrial fibrillation
54 (9.9)
470 (17.1)
<0.001
9 (2.6)
389 (51.0)
42 (4.9)
30 (3.8)
<0.001
Paroxysmal atrial fibrillation
25 (4.6)
323 (11.7)
<0.001
6 (1.7)
260 (34.1)
38 (4.4)
19 (2.4)
<0.001
mRS admission ≥ 1
195 (35.9)
967 (35.1)
0.754
97 (28.1)
331 (43.4)
300 (35.0)
239 (30.3)
<0.001
NIHSS scale admission mean (SD)
14.8 (12.7)
8.8 (8.8)
<0.001
10.3 (8.4)
12.7 (10.2)
8.9 (8.8)
4.2 (3.9)
<0.001
Number of patients with fibrinolysis
0
214
—
28 (8.1)
54 (7.1)
104 (12.1)
28 (3.5)
<0.001
mRS = modified Ranking Score; NIHHS = National Institute of Health Stroke Scale. AT = large artery atherosclerotic stroke; CE = cardioembolic stroke; CRY = cryptogenic stroke; LA = lacunar stroke.
