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Table 1 Investigations to look at stroke pathophysiology performed in the different groups

From: Differences in the distribution of stroke subtypes in a UK black stroke population – final results from the South London Ethnicity and Stroke Study

 

Black stroke patients

White stroke patients

All

Caribbean

African

n = 1200

n (%)

n = 809

n (%)

n = 391

n (%)

n = 1200

n (%)

ECG

1183 (98.6)

795 (98.3)

388 (99.2)

1180 (98.3)

24 hr ECG

81 (6.8)

54 (6.7)

27 (6.9)

142 (11.8)

Echocardiogram

616 (51.3)

396 (48.9)

220 (56.3)

572 (47.7)

Carotid duplexa

989 (95.1)

687 (95.9)

302 (93.2)

1008 (92.9)

Brain CT

1143 (95.3)

772 (95.4)

371 (94.9)

1159 (95.4)

Brain MRI

573 (47.8)

375 (46.4)

198 (50.6)

526 (43.8)

DWI-MRI

454 (37.8)

300 (37.1)

154 (39.4)

396 (33.0)

CT-angiography

164 (13.7)

101 (12.5)

63 (16.1)

160 (13.3)

MR-angiography

349 (29.1)

225 (27.8)

124 (31.7)

295 (24.6)

Any extracranial vessel imaginga

996 (95.8)

690 (96.4)

306 (94.4)

1038 (95.6)

Thrombophilia screena

214 (20.6)

107 (15.2)

107 (33.0)

145 (12.1)

  1. ECG, Electrocardiography; CT, Computed tomography; MRI, Magnetic resonance imaging; DWI, Diffusion weighted imaging
  2. All numbers represent the number of patients in whom the investigation has been done, with in brackets the corresponding percentage of all patients
  3. aPercentages refer to ischaemic stroke patients only