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Table 1 Demographics characteristics and culprit plaque feature between AIS and TIA patients

From: The incomplete circle of Willis is associated with vulnerable intracranial plaque features and acute ischemic stroke

Characteristics

AIS (N = 56)

TIA (N = 41)

P

Age (years old)

53.1 ± 13.4

55.5 ± 14.9

0.418

Sex (Female/Male)

20/36

15/26

0.930

Clinical history [N (%)]

   

  Hypertension

39 (69.6%)

34 (82.9%)

0.134

  Hyperlipidemia

26 (46.4%)

22 (53.7%)

0.482

  Diabetes Mellitus

22 (39.3%)

17 (41.5%)

0.829

  Ischemic heart disease

8 (14.3%)

5 (12.2%)

0.765

  History of stroke

17 (30.4%)

18 (43.9%)

0.17

  Smoking

28 (50%)

20 (48.8%)

0.906

  NIHSS scores [median (IQR)]

2(1, 3.75)

0(0, 2)

<0.001*

CoW integrity [N (%)]

   

  Incomplete A-CoW

16 (28.6%)

10 (24.4%)

0.648

  Incomplete S-P-CoW

49 (87.5%)

23 (56.1%)

<0.001 #

Plaque features

   

  Stenosis percentage

69.3 ± 13.2

67.3 ± 14.0

0.476

  Plaque enhancement ratio

202.6 ± 55.2

179.2 ± 59.7

0.048 ^

  Enhancement grade (0/1/2)

0/36/20

4/30/7

0.010 #

  Irregularity of plaque [N (%)]

34 (62.5%)

10 (24.4%)

<0.001 #

  NWI

84.9 ± 11.1

83.9 ± 13.3

0.977

  Positive remodeling [N (%)]

12 (21.4%)

4 (9.8%)

0.102

  Arterial remodeling ratio

0.87 ± 0.29

0.79 ± 0.22

0.189

  HT1S [N (%)]

51 (91.1%)

32 (78.0%)

0.073

  1. AIS acute ischemic stroke, TIA transient ischemic attack, A-CoW anterior circle of Willis, S-P-CoW  symptomatic side posterior circle of Willis, NWI normalized wall index, HT1S high T1signal