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Table 1 Basic characteristics

From: Relationship between visible branch arteries distal to the stenosis on magnetic resonance angiography and stroke recurrence in patients with severe middle cerebral artery trunk stenosis: a one-year follow up study

  Total (n = 153) Signal intensity distal to MCA stenosis P Value (good vs poor)
   Good Poor  
   Group A (n = 35) Total (n = 118) Group B (n = 58) Group C (n = 60)  
Male 106(69.3) 24(68.6) 82(69.5) 43(74.1) 39(65) 0.917
Age*, years 62.9 ± 13.0 66.4 ± 11.9 61.9 ± 13.2 61.4 ± 13.4 62.4 ± 13.1 0.073
Cerebral infarction 144(94.1) 32(91.4) 112(94.9) 53(91.4) 59(98.3) 0.441
Transient ischemic attack 9(5.9) 3(8.6) 6(5.1) 5(8.6) 1(1.7)  
Risk factor       
 Hypertension 106(69.3) 25(71.4) 81(68.6) 42(72.4) 39(65) 0.837
 Hypercholesterolemia 75(49.0) 17(48.6) 58(49.2) 31(53.4) 27(45) 1.000
 Diabetes 62(40.5) 13(37.1) 49(41.5) 24(41.4) 25(41.7) 0.698
 Smoking 72(47.1) 17(48.6) 55(46.6) 28(48.3) 27(45) 0.838
NIHSS score at admission* 4.5 ± 3.5 4.1 ± 3.6 4.6 ± 3.5 4.1 ± 3.1 5.3 ± 3.9 0.435
Asymptomatic ICAS 74(48.4) 16(45.7) 58(49.2) 26(44.8) 32(53.3) 0.848
Asymptomatic ECAS 10(6.5) 3(8.6) 7(5.9) 4(6.9) 3(5) 0.579
  1. Abbreviations: ECAS, exracranial atherosclerosis; ICAS, intracranial atherosclerosis; MCA, middle cerebral artery; NIHSS, National Institute of Health Stroke Scale
  2. *Continuous variables expressed as the means ± standard deviations; other values are expressed as n (%)