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Table 2: Patient characteristics according to preprocedural CRP levels*
Normal CRP Elevated CRP^† P Value
Demographic 
    n 94 (72.3%) 36 (27.7%) 
    Mean age (years) 67.9 (±10.3) 69.9 (±9.7) .330
    Age >80 years 5 (5.3%) 5 (13.9%) .139
    Male 65 (69.1%) 32 (88.9%) .024
Presentation 
    Stroke 43 (45.7%) 18 (50.0%) .698
    Hemispherical TIA 37 (39.4%) 15 (41.7%) .843
    Retinal TIA 14 (14.9%) 3 (8.3%) .396
    Symptom onset to CAS (days) 21.7 (±18.4) 25.3 (±28.3) .529
Medical conditions 
    Hypertension 72 (76.6%) 30 (83.3%) .481
    Hyperlipidemia 50 (53.2%) 18 (50.0%) .845
    Current tobacco use 31 (32.0%) 10 (27.8%) .675
    Diabetes mellitus 22 (23.4%) 13 (36.1%) .185
    Coronary artery disease 21 (22.3%) 8 (22.2%) 1.0
Radiological conditions 
    Carotid artery stenosis right 41 (43.6%) 20 (55.6%) .331
    Degree of stenosis (%) 89.3 (±6.2) 87.8 (±8.9) .297
    Contralateral ICA occlusion 8 (8.5%) 6 (16.7%) .210
    Contralateral ICA stenosis     (≥50%) 20 (21.3%) 5 (13.9%) .458
    Carotid protection 24 (27.0%) 8 (25%) 1.0
Current medication 
    Statins 30 (31.9%) 14 (38.9%) .535
    Angiotensin-converting enzyme inhibitors 39 (41.9%) 18 (50.0%) .432
    β-Adrenergic receptor blockers 25 (26.6%) 8 (22.2%) .660
    Diuretics 23 (24.5%) 14 (38.9%) .129
Serum parameters 
    Cholesterol (mg/dL) 205 (±49.5) 195.2 (±44.6) .292
    Triglyceride (mg/dL) 179.9 (±134.6) 189.7 (±106.2) .726
    LDL (mg/dL) 138.0 (±39.9) 132.6 (±32.5) .649
    HDL (mg/dL) 47.8 (±13.6) 43.2 (±8.2) .254
    CRP (mg/L) 0.7 (±1.5) 12.9 (±11.6) .001
Note:—CAS indicates carotid artery stent; CRP, C-reactive protein, HDL, high-density lipoprotein; ICA, internal carotid artery; LDL, low-density lipoprotein; TIA, transient ischemic attack.
* Data are mean values ± SD or n (%).
† Elevated CRP values refer to >5 mg/L.