| RISK
VARIABLE |
Count |
% of Pop. |
Mortality w/ Variable
Present |
Mortality w/ Variable
Absent |
Relative Risk |
c 2 p-Value |
| CCS
Class II vs. I |
52 |
0.57% |
1 /
52 |
1.92% |
58
/ 2,016 |
2.88% |
0.67 |
0.6833 |
| CCS
Class III vs. I |
3,304 |
36.33% |
109
/ 3,304 |
3.30% |
58
/ 2,016 |
2.88% |
1.15 |
0.3918 |
| CCS
Class IV vs. I |
855 |
9.40% |
61
/ 855 |
7.13% |
58
/ 2,016 |
2.88% |
2.48 |
0.0000 |
| |
| NYHA
Class II vs. I |
1,543 |
16.97% |
28
/ 1,543 |
1.81% |
11
/ 880 |
1.25% |
1.45 |
0.2882 |
| NYHA
Class III vs. I |
3,472 |
38.17% |
128
/ 3,472 |
3.69% |
11
/ 880 |
1.25% |
2.95 |
0.0002 |
| NYHA
Class IV vs. I |
1,418 |
15.59% |
100
/ 1,418 |
7.05% |
11
/ 880 |
1.25% |
5.64 |
0.0000 |
| |
| Aortic
Valve Disease |
7,810 |
85.87% |
285
/ 7,810 |
3.65% |
43
/ 1,285 |
3.35% |
1.09 |
0.5895 |
| Mitral
Valve Disease |
1,308 |
14.38% |
64
/ 1,308 |
4.89% |
264
/ 7,787 |
3.39% |
1.44 |
0.0070 |
| Tricuspid
Valve Disease |
429 |
4.72% |
20
/ 429 |
4.66% |
308
/ 8,666 |
3.55% |
1.31 |
0.2296 |
| Pulmonic
Valve Disease |
87 |
0.96% |
2 /
87 |
2.30% |
326
/ 9,008 |
3.62% |
0.64 |
0.5110 |
| |
| Reoperation
#1 vs. First Op |
1,081 |
11.89% |
83
/ 1,081 |
7.68% |
234
/ 7,874 |
2.97% |
2.58 |
0.0000 |
| Multiple
Reoperations vs. First Op |
140 |
1.54% |
11
/ 140 |
7.86% |
234
/ 7,874 |
2.97% |
2.64 |
0.0009 |
| |
| Urgent
vs. Elective |
1,336 |
14.69% |
79
/ 1,336 |
5.91% |
223
/ 7,604 |
2.93% |
2.02 |
0.0000 |
| Emergent
vs. Elective |
120 |
1.32% |
17
/ 120 |
14.17% |
223
/ 7,604 |
2.93% |
4.83 |
0.0000 |
| Emergent/Salvage
vs. Elective |
35 |
0.38% |
9 /
35 |
25.71% |
223
/ 7,604 |
2.93% |
8.77 |
0.0000 |
| |
| Double
Vessel Disease vs. Single |
103 |
1.13% |
7 /
103 |
6.80% |
4 /
213 |
1.88% |
3.62 |
0.0254 |
| Triple
Vessel Disease vs. Single |
135 |
1.48% |
7 /
135 |
5.19% |
4 /
213 |
1.88% |
2.76 |
0.0857 |
| |
| Left
Main Disease |
30 |
0.33% |
2 /
30 |
6.67% |
326
/ 9,065 |
3.60% |
1.85 |
0.3679 |
| |
| Preop
IABP |
58 |
0.64% |
10
/ 58 |
17.24% |
318
/ 9,037 |
3.52% |
4.90 |
0.0000 |
| |
| Age
61 - 65 vs. Age < 60 |
996 |
10.95% |
38
/ 996 |
3.82% |
77
/ 2,820 |
2.73% |
1.4 |
0.0852 |
| Age
66 - 70 vs. Age < 60 |
1,354 |
14.89% |
41
/ 1,354 |
3.03% |
72
/ 2,639 |
2.73% |
1.11 |
0.5887 |
| Age
71 - 80 vs. Age < 60 |
2,928 |
32.19% |
115
/ 2,928 |
3.93% |
72
/ 2,639 |
2.73% |
1.44 |
0.0131 |
| Age
> 80 vs. Age < 60 |
997 |
10.96% |
57
/ 997 |
5.72% |
72
/ 2,639 |
2.73% |
2.10 |
0.0000 |
| |
| E.F.
45% - 54% vs. E.F. =55% |
1,738 |
19.11% |
68
/ 1,738 |
3.91% |
84
/ 3,295 |
2.55% |
1.53 |
0.0072 |
| E.F.
35% - 44% vs. E.F. =55% |
974 |
10.71% |
35
/ 974 |
3.59% |
84
/ 3,295 |
2.55% |
1.41 |
0.0820 |
| E.F.
25% - 34% vs. E.F. =55% |
560 |
6.16% |
27
/ 560 |
4.82% |
84
/ 3,295 |
2.55% |
1.89 |
0.00
| |
