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. 2017 Sep;9(9):2966–2973. doi: 10.21037/jtd.2017.08.06

Table 5. Coronary atherosclerotic disease burden.

Variable Type I (n=71) Extended type II (n=37) P value
Previous cardiac intervention 4 (5.6%) 9 (24.3%) 0.010
Previous CABG 1 (1.4%) 4 (10.8%) 0.046
Previous PCI 1 (1.4%) 5 (13.5%) 0.017
Prior myocardial infarction 4 (5.6%) 3 (8.1%) 0.700
Number of diseased coronary vessels
   0 68 (95.8%) 29 (78.4%) 0.005
   1 3 (4.2%) 2 (5.4%) 0.800
   2 0 (0%) 1 (2.7%) 0.200
   3 0 (0%) 5 (13.5%) 0.002

Nominal data expressed as presented as n and percentage of total population and compared with Pearson χ2 or Fisher’s exact test. PCI, percutaneous coronary interventions; CABG, coronary artery bypass grafting.