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Table 2 Index events, procedural resource use, and cost

From: Comparative cost-effectiveness of surgery, angioplasty, or medical therapy in patients with multivessel coronary artery disease: MASS II trial

  PCI (n = 205) MT (n = 203) CABG (203) P
Procedural resource use, % (n)
 No of PCI procedures     < 0.001a
  0 6.8 (14) 97.5 (198) 99.5 (202)  
  1 96.6 (173) 2.8 (5) 0.6 (1)  
  2 8.3 (17) 0.0 (0) 0.0 (0)  
  3 0.5 (1) 0.0 (0) 0.0 (0)  
 Bare metal stent     < 0.001a
  0 22.9 (47) 97.5 (198) 100 (203)  
  1 35.1 (72) 2.0 (4) 0 (0)  
  2 32.2 (66) 0.5 (1) 0 (0)  
  3 8.3 (17) 0 (0) 0 (0)  
  ≥ 4 1.5 (3) 0 (0) 0 (0)  
 Balloon angioplasty     < 0.001a
  0 6.8 (14) 97.5 (198) 99.5 (202)  
  1 26.8 (55) 1.5 (3) 0.5 (1)  
  2 37.1 (76) 1.0 (2) 0 (0)  
  3 21.0 (43) 0 (0) 0 (0)  
  ≥ 4 8.3 (17) 0 (0) 0 (0)  
 CABG procedure     < 0.001a
  0 92.2 (189) 94.1 (191) 8.9 (18)  
  1 7.8 (16) 5.9 (12) 91.1 (185)  
 Diagnostic catheterization     < 0.001a
  1 80.5 (165) 96.6 (196) 95.6 (194)  
  2 18.5 (38) 3.4 (7) 4.4 (9)  
  3 1.0 (2) 0.0 (0) 0 (0)  
Clinical outcomes, % (n)
 Death 4.9 (10) 1.0 (2) 3.9 (8) 0.07a
 AMI 14.9 (30) 5.9 (12) 7.4 (15) 0.005a
 Stroke 2.0 (4) 1.0 (2) 4.4 (9) 0.068a
 Unstable angina 2.9 (6) 0.5 (1) 1.0 (2) 0.263a
Cost, $ mean ± SD
 Medication 47 ± 32 [38] 80 ± 104 [64] 40 ± 29 [30] < 0.001b
 Outpatient service 303 ± 85 [274] 284 ± 112 [261] 248 ± 53 [233] < 0.001b
 PCI procedure 1490 ± 741 [1385] 35 ± 225 [0] 3 ± 46 [0] < 0.001b
 CABG procedure 152 ± 523 [0] 115 ± 460 [0] 1775 ± 555 [1947] < 0.001b
 Total cost 1952 ± 841 [1807] 446 ± 525 [277] 2037 ± 559 [2180] < 0.001b
  1. Values in brackets represent medians
  2. MT medical treatment, PCI percutaneous coronary intervention, CABG coronary artery bypass graft, AMI acute myocardial infarction, $ American dollar
  3. aChi square test of homogeneity
  4. bKruskal–Wallis; SD standard deviation