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Table 2 Coronary categories as determined by CT and the events of abandoned surgery for the reason of significant CAD

From: Usefulness of preoperative coronary computed tomography angiography in high risk non-cardiovascular surgery old patients with unknown or suspected coronary artery disease

  Frequency (n, %) Event (n, %) p value
Maximal stenosis of any coronary artery
 Non-significant CAD
  No-CAD 485 (57.7%) 0 (0)  
  1–49% 192 (22.8%) 0 (0)  
 Significant CAD    0.008
  50–69% 78 (9.3%) 30 (38.5%)  
  ≥ 70% 86 (10.2%) 52 (60.5%)  
Number of obstructive major coronary artery
 Maximal stenosis < 50% 677 (80.5%) 0 (0)  
 1-vessel disease 103 (12.2%) 46 (44.7%) 0.068
 2-vessel disease 45 (5.4%) 24 (53.3)  
 3-vessel disease 16 (1.9%) 12 (75.0%)  
 Multi-vessel disease 61 (7.3%) 36 (59.0%) 0.106
  1. CAD coronary artery disease
  2. Event compared among 1, 2 and 3-vessel disease
  3. Event compared between 1-vessel disease