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Table 1 Baseline patient characteristics

From: Systolic blood pressure as a predictor of transient ischemic attack/minor stroke in emergency department patients under age 80: a prospective cohort study

Variable

All patients

(N = 1084)

TIA/minor stroke

(N = 768; 70.8%)

Stroke-mimic

(N = 316; 29.2%)

p*

Demographics

 Age, mean (SD)

68.7 (15.5)

71.6 (13.7)

61.4 (17.0)

< 0.001

 Sex, male (%)

573 (52.9)

442 (57.6)

131 (41.5)

< 0.001

 Symptom onset to ED presentation, hours, median [IQR]

2.3 [1.3, 4.9]

2.3 [1.3, 4.9]

2.3 [1.3, 4.6]

0.862

Time of ED presentation

   

0.317

  (midnight—4 am]

70 (6.5)

51 (6.6)

19 (6.0)

 

  (4 am—8 am]

85 (7.8)

61 (7.9)

24 (7.6)

 

  (8 am—noon]

390 (36.0)

267 (34.8)

123 (38.9)

 

  (noon—4 pm]

293 (27.0)

207 (27.0)

86 (27.2)

 

  (4 pm—8 pm]

144 (13.3)

100 (13.0)

44 (13.9)

 

  (8 pm—midnight]

102 (9.4)

82 (10.7)

20 (6.3)

 

 Anxiety/Panic Feeling (%)

67 (6.2)

44 (5.7)

23 (7.3)

0.410

Investigations (%)

 MRI

999 (92.2)

720 (93.8)

279 (88.3)

0.004

 CTA

884 (81.5)

660 (85.9)

224 (70.9)

< 0.001

 CT

1014 (93.5)

737 (96.0)

277 (87.7)

< 0.001

Medical History (%)

 Diabetes

193 (17.8)

143 (18.6)

50 (15.8)

0.314

 Hypertension

620 (57.2)

471 (61.3)

149 (47.2)

< 0.001

Medications (%)

 Statin for at least the last 30 days

349 (32.2)

265 (34.6)

84 (26.6)

0.013

 Antiplatelets for at least the last 7 days

386 (35.6)

296 (38.6)

90 (28.5)

0.002

 Beta blocker

207 (19.1)

166 (21.6)

41 (13.0)

0.001

 Calcium blocker

150 (13.8)

115 (15.0)

35 (11.1)

0.111

 Diuretic

188 (17.3)

146 (19.0)

42 (13.3)

0.030

 ACE inhibitor

262 (24.2)

197 (25.7)

65 (20.6)

0.090

 Angiotensin II receptor antagonist

178 (16.4)

137 (17.8)

41 (13.0)

0.061

 Vitamin K antagonist

37 (3.4)

30 (3.9)

7 (2.2)

0.225

 Novel anticoagulant

46 (4.2)

39 (5.1)

7 (2.2)

0.050

90-day Outcomes (%)

   

0.003

 Death

23 (2.1)

16 (2.1)

7 (2.2)

 

 Stroke

33 (3.0)

31 (4.0)

2 (0.6)

 

 Lost to follow-up

55 (5.1)

31 (4.0)

24 (7.6)

 

 No event

973 (89.8)

690 (89.8)

283 (89.6)

 

TOAST (%)

 Cardioembolic

124 (11.4)

124 (16.1)

  

 Cryptogenic

285 (26.3)

285 (37.1)

  

 Large-artery atherosclerosis

122 (11.3)

112 (15.9)

  

 Small-vessel occlusion

77 (7.1)

77 (10.0)

  

 Other known etiologies

22 (2.0)

22 (2.9)

  

 Competing etiologies

34 (3.1)

34 (4.4)

  
  1. Medication data for statin, antiplatelets, and vitamin K antagonist missing for 1 case; TOAST subtype unavailable for 104 cases due to incomplete evaluation.
  2. CT computed tomography, CTA computed tomography angiography, ED emergency department, MRI magnetic resonance imaging, SD standard deviation.
  3. *p-values computed from Pearson’s chi-square test of homogeneity for categorical variables, Welch’s t-test and Mann-Whitney test for continuous variables reported with mean and median, respectively