|
Study population
|
26,437
|
1371
|
1349
|
1349
| |
|
Year of surgery:
|
|
2005–2006
|
6240 (23.6%)
|
381 (27.8%)
|
345 (25.6%)
|
381 (28.2%)
|
0.06
|
|
2007–2008
|
5856 (22.2%)
|
283 (20.6%)
|
303 (22.5%)
|
283 (21.0%)
|
0.04
|
|
2009–2010
|
4780 (18.1%)
|
231 (16.8%)
|
232 (17.2%)
|
226 (16.8%)
|
0.01
|
|
2011–2012
|
4149 (15.7%)
|
181 (13.2%)
|
164 (12.2%)
|
174 (12.9%)
|
0.02
|
|
2013–2015
|
5412 (20.5%)
|
295 (21.5%)
|
305 (22.6%)
|
285 (21.1%)
|
0.04
|
|
Age (years):
|
|
40–50
|
1042 (3.9%)
|
47 (3.4%)
|
35 (2.6%)
|
46 (3.4%)
|
0.05
|
|
50–60
|
4715 (17.8%)
|
251 (18.3%)
|
234 (17.3%)
|
244 (18.1%)
|
0.02
|
|
60–65
|
4734 (17.9%)
|
256 (18.7%)
|
255 (18.9%)
|
254 (18.8%)
|
0.00
|
|
65–70
|
5659 (21.4%)
|
313 (22.8%)
|
310 (23.0%)
|
307 (22.8%)
|
0.01
|
|
70–75
|
5740 (21.7%)
|
316 (23.0%)
|
305 (22.6%)
|
311 (23.1%)
|
0.01
|
|
75–80
|
4547 (17.2%)
|
188 (13.7%)
|
210 (15.6%)
|
187 (13.9%)
|
0.05
|
|
Female
|
4853 (18.4%)
|
207 (15.1%)
|
197 (14.6%)
|
201 (14.9%)
|
0.01
|
|
BMI:
|
|
< 25
|
6903 (28.4%)
|
373 (27.2%)
|
387 (28.7%)
|
365 (27.1%)
|
0.04
|
|
25–30
|
11,631 (47.8%)
|
674 (49.2%)
|
664 (49.2%)
|
668 (49.5%)
|
0.01
|
|
> 30
|
5785 (23.8%)
|
323 (23.6%)
|
298 (22.1%)
|
316 (23.4%)
|
0.03
|
|
BMI not recorded
|
2118 (8.0%)
|
1 (0.1%)
| | | |
|
Diabetes
|
6757 (26.1%)
|
329 (24.0%)
|
315 (23.4%)
|
321 (23.8%)
|
0.01
|
|
Presence of diabetes not recorded
|
584 (2.2%)
|
1 (0.1%)
| | | |
|
Renal impairment:
|
|
Normal, (CC > 85 ml/min)
|
12,149 (50.1%)
|
742 (54.2%)
|
691 (51.2%)
|
729 (54.0%)
|
0.06
|
|
Moderately impaired (50–85 ml/min)
|
10,248 (42.3%)
|
552 (40.3%)
|
585 (43.4%)
|
546 (40.5%)
|
0.06
|
|
Severely impaired (< 50 ml/min) off dialysis
|
1596 (6.6%)
|
69 (5.0%)
|
71 (5.3%)
|
68 (5.0%)
|
0.01
|
|
On dialysis
|
253 (1.0%)
|
6 (0.4%)
|
2 (0.2%)
|
6 (0.4%)
|
0.05
|
|
Renal impairment not recorded
|
2191 (8.3%)
|
2 (0.2%)
| | | |
|
COPD
|
1872 (7.3%)
|
58 (4.3%)
|
56 (4.2%)
|
58 (4.3%)
|
0.01
|
|
COPD not recorded
|
961 (3.6%)
|
12 (0.9%)
| | | |
|
Extracardiac arteriopathy
|
2166 (8.3%)
|
88 (6.4%)
|
82 (6.1%)
|
88 (6.5%)
|
0.02
|
|
Extracardiac arteriopathy not recorded
|
305 (1.2%)
|
5 (0.4%)
| | | |
|
Neurological disability
|
554 (2.2%)
|
45 (3.3%)
|
44 (3.3%)
|
45 (3.3%)
|
0.00
|
|
Neurological disability not recorded
|
971 (3.7%)
|
1 (0.1%)
| | | |
|
Ejection fraction:
|
|
Normal
|
18,161 (69.5%)
|
1055 (77.1%)
|
1065 (78.9%)
|
1046 (77.5%)
|
0.03
|
|
30–50%
|
6682 (25.6%)
|
259 (18.9%)
|
242 (17.9%)
|
251 (18.6%)
|
0.02
|
|
< 30%
|
1289 (4.9%)
|
54 (3.9%)
|
42 (3.1%)
|
52 (3.9%)
|
0.04
|
|
Ejection fraction not recorded
|
305 (1.2%)
|
3 (0.2%)
| | | |
|
MI last 90 days
|
10,853 (41.5%)
|
500 (36.5%)
|
492 (36.5%)
|
487 (36.1%)
|
0.01
|
|
Prior MI not recorded
|
304 (1.1%)
|
0 (0.0%)
| | | |
|
Previous PCI
|
3537 (16.1%)
|
269 (19.7%)
|
254 (18.8%)
|
263 (19.5%)
|
0.02
|
|
Previous PCI not recorded
|
4492 (17.0%)
|
5 (0.4%)
| | | |
|
Emergency surgery
|
1124 (4.3%)
|
53 (3.9%)
|
47 (3.5%)
|
49 (3.6%)
|
0.01
|
|
Urgency not recorded
|
62 (0.2%)
|
0 (0.0%)
| | | |
|
Number of distal anastomoses:
|
|
2
|
5565 (21.1%)
|
187 (13.6%)
|
202 (15.0%)
|
183 (13.6%)
|
0.04
|
|
3
|
11,605 (43.9%)
|
458 (33.4%)
|
467 (34.6%)
|
451 (33.4%)
|
0.03
|
|
4
|
7019 (26.5%)
|
532 (38.8%)
|
469 (34.8%)
|
521 (38.6%)
|
0.08
|
|
5+
|
2248 (8.5%)
|
194 (14.2%)
|
211 (15.6%)
|
194 (14.4%)
|
0.04
|
|
Off-pump
|
130 (0.5%)
|
81 (5.9%)
|
81 (6.0%)
|
81 (6.0%)
|
0.00
|
