Demographics and background history of patients undergoing CABG in New South Wales from 2000 to 2013
| Variable | 2000–2001 n (%) N=7318 | 2002–2003 n (%) N=9563 | 2004–2005 n (%) N=8420 | 2006–2007 n (%) N=8036 | 2008–2009 n (%) N=7452 | 2010–2011 n (%) N=6782 | 2012–2013 n (%) N=7196 | Overall n (%) N=54 767 | P value |
| Male | 5524 (75) | 7211 (75) | 6474 (77) | 6230 (78) | 5815 (78) | 5363 (79) | 5768 (80) | 42 385 (77) | <0.0001 |
| Age, mean (SD) | 66.5 (10.6) | 67.0 (10.5) | 67.5 (10.6) | 67.8 (10.7) | 68.0 (10.7) | 67.9 (10.6) | 67.8 (10.6) | 67.5 (10.6) | <0.0001 |
| Acute myocardial infarct indication for CABG | 1018 (14) | 1608 (17) | 1826 (22) | 1996 (25) | 1951 (26) | 1852 (27) | 1933 (27) | 12 184 (22) | <0.0001 |
| Atrial fibrillation & Flutter | 1835 (25) | 2793 (29) | 2861 (34) | 2853 (36) | 2814 (38) | 2642 (39) | 2809 (39) | 18 607 (34) | <0.0001 |
| Congestive heart failure | 519 (7) | 718 (8) | 817 (10) | 728 (9) | 693 (9) | 642 (9) | 690 (10) | 4807 (9) | <0.0001 |
| Cerebrovascular accident | 116 (2) | 161 (2) | 157 (2) | 140 (2) | 110 (1) | 112 (2) | 98 (1) | 894 (2) | 0.1376 |
| Chronic kidney disease | 361 (5) | 547 (6) | 643 (8) | 738 (9) | 678 (9) | 628 (9) | 715 (10) | 4310 (8) | <0.0001 |
| Chronic pulmonary disease | 581 (8) | 664 (7) | 705 (8) | 531 (7) | 323 (4) | 273 (4) | 312 (4) | 3389 (6) | <0.0001 |
| Current and past tobacco use | 3418 (47) | 4830 (51) | 4345 (52) | 4421 (55) | 4046 (54) | 3754 (55) | 4010 (56) | 28 824 (53) | <0.0001 |
| Current tobacco use | 780 (11) | 992 (10) | 1005 (12) | 952 (12) | 931 (12) | 837 (12) | 951 (13) | 6448 (12) | <0.0001 |
| Diabetes | 1592 (22) | 2544 (27) | 2410 (29) | 2591 (32) | 2060 (28) | 1302 (19) | 2290 (32) | 14 789 (27) | <0.0001 |
| Hypertension | 4311 (59) | 5981 (63) | 5667 (67) | 5606 (70) | 4941 (66) | 4322 (64) | 4872 (68) | 35 700 (65) | <0.0001 |
| Peripheral vascular disease | 563 (8) | 824 (9) | 804 (10) | 688 (9) | 530 (7) | 408 (6) | 462 (6) | 4279 (8) | <0.0001 |
| Prior CABG | 267 (4) | 387 (4) | 262 (3) | 214 (3) | 160 (2) | 143 (2) | 120 (2) | 1553 (3) | <0.0001 |
| Prior percutaneous coronary intervention | 461 (6) | 578 (6) | 561 (7) | 633 (8) | 565 (8) | 563 (8) | 619 (9) | 3980 (7) | <0.0001 |
| Valve surgery at the time of CABG | 682 (9) | 1021 (11) | 1148 (14) | 1232 (15) | 1294 (17) | 1219 (18) | 1345 (19) | 7941 (14) | <0.0001 |
CABG, coronary artery bypass grafting.