Variable All (n = 8417) No imaging (n = 7138) Imaging (n = 1279) valueAge (years), ±SD 73.1 ± 9.3 73.2 ± 9.3 72.6 ± 9.3 0.03 Female gender, no. (%) 2356 (28) 2024 (28.4) 332 (26) 0.09 Weight (kg), ±SD 80.8 ± 17.3 80.6 ± 17.1 81.7 ± 18.4 0.21 CCS score, ±SD 2.5 ± 1 2.5 ± 1 2.6 ± 1.1 <0.01 NYHA score, ±SD 2.1 ± 0.9 2.1 ± 0.9 2.2 ± 0.9 0.01 No. of diseased vessels pre-PCI, ±SD 1.7 ± 0.9 1.7 ± 0.9 1.8 ± 0.9 <0.01 Renal disease, no. (%) 562 (6.9) 469 (6.8) 93 (7.5) 0.40 Clopidogrel, no. (%) 6890 (84.5) 5857 (84.6) 1033 (84.3) 0.84 Prasugrel, no. (%) 87 (1.1) 72 (1) 15 (1.2) 0.62 Ticagrelor, no. (%) 344 (4.2) 290 (4.2) 54 (4.4) 0.81 Stroke, no. (%) 622 (8.8) 499 (8.4) 123 (11) 0.01 Diabetes, no. (%) 2529 (30.7) 2138 (30.6) 391 (31.2) 0.69 Ejection fraction <30%, no. (%) 527 (9.7) 447 (10) 80 (8.4) 0.15 Hypertension, no. (%) 6015 (84.8) 5057 (84.7) 958 (85.6) 0.47 ACS, no. (%) 3265 (38.8) 2718 (38.1) 547 (42.8) <0.01 STEMI, no. (%) 112 (1.4) 101 (1.5) 11 (0.9) 0.13 NSTEMI, no. (%) 3067 (38.1) 2554 (37.3) 513 (42.3) <0.01 Off-site surgery, no. (%) 2783 (34.9) 2251 (32.9) 532 (47.1) <0.01 PVD, no. (%) 985 (13.9) 812 (13.6) 173 (15.5) 0.10 Smoking history, no. (%) 4804 (62.3) 3993 (61.4) 811 (67.4) <0.01 Valve disease, no. (%) 340 (4.8) 280 (4.7) 60 (5.4) 0.36 Warfarin, no. (%) 131 (1.6) 105 (1.5) 26 (2.1) 0.15 Previous MI, no. (%) 3260 (41.6) 2769 (41.1) 491 (44.6) 0.03 Previous CABG, no. (%) 1270 (15.3) 1079 (15.3) 191 (15.1) 0.89 Previous PCI, no. (%) 2727 (33) 2309 (32.9) 418 (33.3) 0.80 Ventilated preprocedure, no. (%) 39 (0.5) 37 (0.6) 2 (0.2) 0.17 Q-wave on ECG, no. (%) 839 (11.2) 712 (11.1) 127 (11.9) 0.47 Year 2007 395 (4.7) 355 (5) 40 (3.1) <0.01 2008 644 (7.7) 566 (7.9) 78 (6.1) 0.03 2009 759 (9) 635 (8.9) 124 (9.7) 0.39 2010 935 (11.1) 788 (11) 147 (11.5) 0.63 2011 1098 (13) 900 (12.6) 198 (15.5) 0.01 2012 1405 (16.7) 1168 (16.4) 237 (18.5) 0.07 2013 1549 (18.4) 1343 (18.8) 206 (16.1) 0.02 2014 1632 (19.4) 1383 (19.4) 249 (19.5) 0.97