| Smokers 23 | Non-Smokers 76 | P value |
% Luminal narrowing | 15.0 (10.2, 27.4) | 15.5 (10.5, 22.3) | 0.67 |
ITI | 0.14 (0.11, 0.19) | 0.15 (0.11, 0.19) | 0.74 |
IMR | 0.25 (0.13, 0.33) | 0.17 (0.12, 0.26) | 0.05 |