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Table 6 QCA analysis

From: Treatment of coronary bifurcation lesions: stent-covering of the side branch with and without PCI of the side branch: a retrospective analysis of all consecutive patients

Main branch Covering SB without PCI SB (n = 64, group A) Covering SB + PCI SB (n = 34, group B) Difference CI; P
Minimal luminal diameter, before/after PCI mm (mean, range, SD) 0.88 (0–1.9; 0.4) 0.82 (0–1.6; 0.4) 0.06a (−0.11; 0.23) 0.46
  2.1 (1.1-3.9; 0.5) 2.0 (1.3-3.4; 0.5) 0.00a (−0.21; 0.21) 0.99
% diameter stenosis before/after PCI (mean, range, SD) 65.4 (48–100; 12.5) 66.3 (49–100; 11.8) −0.9a (−6.5; 4.7) 0.74
  16.0 (0–44; 10.5) 19.6 (2–44; 11.1) −3.6a (−8.4; 1.2) 0.14
Reference diameter mm (mean, range, SD) 2.6 (1.3-4.6; 0.6) 2.5 (1.2-4.4; 0.7) 0.07a (−0.23; 0.37) 0.65
Lesion length mm(mean, range, SD) 7.5 (1.5-23.6; 3.5) 9.4 (3.6-31.1; 5.6) −0.20b (−0.42 ; 0.03) 0.08
Side branch Covering SB without PCI SB (n = 64, group A) Covering SB + PCI SB (n = 34, group B) Difference CI; P
Minimal luminal diameter, before/after PCI mm (mean, range, SD) 1.2 (0–2.5; 0.5) 1.3 (0.3-2.4; 0.6) −0.08a (−0.33; 0.16) 0.50
  1.1 (0–2,3; 0.6) 1.4 (0.7-2.2; 0.4) −0.27a (−0.50; -0.03) 0.03
% diameter stenosis before/after PCI (mean, range, SD) 34.2 (0–100; 27.0) 44.0 (12–100; 24.7) −9.83a (−21.8; 2.2) 0.11
  34.1 (0–100; 25.0) 22.8 (2.9-51.0; 13.5) 11.30a (1.42; 21.17) 0.03
Reference diameter mm (mean, range, SD) 1.8 (0.6-3.3; 0.6) 2.1 (1.3-2.92; 0.5) −0.28a (−0.53; -0.03) 0.03
Lesion length mm(mean, range, SD) 3.0 (0.0-9.2; 2.1) 3.0 (0.3-9.0; 2.1) −0.12b (−0.58; 0.34) 0.61
  1. a Difference in means; b Average difference, logged values (for not normally distributed variables).