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Table 6 EBCT score distribution and positive predictive values in studies of symptomatic subjects

From: Validity of electron beam computed tomography for coronary artery disease: asystematic review and meta-analysis

  Reported classification Simplified classification
Study EBCT category Number (%) of patients Number (%) with CAD EBCT category Number (%) of patients Number (%) with CAD
Budoff et al. [15] 0 147 (20.7) 23 (15.6) Low 147 (20.7) 23 (15.6)
  >0 563 (79.3) 404 (71.8) Moderate/high 563 (79.3) 404 (71.8)
  Total 710 427    
Baumgart et al. [16] 0 32 (56.1) 10 (31.3) Low 32 (56.1) 10 (31.3)
  >0 25 (43.9) 19 (76.0) Moderate/high 25 (43.9) 19 (76.0)
  Total 57 29    
Seese et al. [17] 0 22 (20.6) 4 (18.2) Low 22 (20.6) 4 (18.2)
  >0 85 (79.4) 83 (97.7) Moderate/high 85 (79.4) 83 (97.7)
  Total 107 87    
Yao et al. [18] 0 26 (40.1) 11 (42.3) Low 26 (40.1) 11 (42.3)
  >0 38 (59.9) 34 (89.5) Moderate/high 38 (59.9) 34 (89.5)
  Total 64 45    
Bielak et al. [20] 0 40 (18.8) 1 (2.5) Low   
  1–9 31 (14.6) 8 (25.8) Low 71 (33.3) 9 (12.7)
  10–49 25 (11.7) 6 (24.0) Moderate   
  50–99 13 (6.1) 7 (53.8) Moderate   
  100–199 24 (11.3) 17 (70.8) Moderate   
  200–499 25 (11.7) 21 (84.0) Moderate? 87 (40.8) 51 (58.6)
  ≥500 55 (25.8) 52 (94.5) High 55 (25.8) 52 (94.5)
  Total 213 112    
Chen et al. [19] 0–5 22 (19.0) 2 (9.1) Low 22 (19.0) 2 (9.1)
  6–75 17 (14.7) 3 (17.7) Moderate   
  76–500 29 (15.0) 24 (82.8) Moderate? 46 (29.7) 27 (58.7)
  >500 48 (41.4) 45 (93.8) High 48 (41.4) 45 (93.8)
  Total 116 74    
Hosoi et al. [21] 0 36 (12.8) 7 (19.4) Low 74 (26.3) 29 (39.2)
  1–10 38 (13.5) 22 (57.9) Low   
  11–100 59 (20.9) 39 (66.1) Moderate   
  101–399 53 (18.8) 41 (77.4) Moderate 112 (39.7) 80 (71.4)
  >399 96 (34) 93 (96.9) High 96 (34) 93 (96.9)
  Total 282 202    
Budoff et al. [22] 0 386 (20.9) 39 (10.1) Low 386 (20.9) 39 (10.1)
  1–20 216 (11.7) 60 (27.8) Moderate?   
  21–80 230 (12.4) 108 (47.0) Moderate   
  81–100 55 (3.0) 29 (52.7) Moderate 501 (27.1) 197 (39.3)
  >100 964 (52.1) 747 (77.5) High 964 (52.1) 747 (77.5)
  Total 1851 983    
Almeda et al. [23] 0 26 (10.6) 2 (7.7) Low 26 (10.6) 2 (7.7)
  <100 28 (11.4) 14 (50.0) Moderate   
  100–399 71 (28.9) 39 (54.9) Moderate 99 (40.3) 53 (53.5)
  ≥400 121 (49.2) 105 (86.8) High 121 (49.2) 105 (86.8)
  Total 246 160    
Knez et al. [24] 0 254 (12.0) 13 (5.1) Low   
  1–9 427 (20.2) 75 (17.6) Low 681 (32.2) 88 (12.9)
  10–99 211 (10.0) 150 (71.1) Moderate 211 (10.0) 150 (71.1)
  >99 1223 (57.8) 1017 (83.2) High 1223 (57.8) 1017 (83.2)
  Total 2115 1255    
  1. *CAD, coronary artery disease; EBCT, electron beam computed tomography.
  2. **Here '?' denotes that the simplified EBCT category could be the adjacent category.