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Table 1: 
Characteristics of transient ischemic attack (TIA) patients with and without infarction on follow-up MR imaging (MRI)
Reversible (n = 7)Infarction (n = 26)All Patients (n = 33)P Value
Male, %5 (71%)18 (70%)23 (69%)1
Age, y (mean ± SD)58 ± 1561 ± 1760 ± 16.5
Symptoms
    Duration, min (mean ± SD)76 ± 85188 ± 253201 ± 262.2
    Duration <60 min3 (43%)10 (38%)13 (39%)1
Multiple TIA events3 (43%)10 (38%)13 (39%)1
Identified cause, %3 (43%)12 (46%)15 (45%)1
Initial MRI
    Delay from onset MRI, h21 ± 1033 ± 3630 ± 33.9
    Solitary lesions6 (86%)11 (42%)17 (51.5%).08
Follow-up MRI
    Delay from onset MRI, mo11.6 ± 3.110.4 ± 5.510.6 ± 5.75
  • Note:— Patients with multiple lesions of different outcome are classed in the infarction group.