| RISK
VARIABLE |
Count |
% of Pop. |
Mortality w/ Variable Present |
Mortality w/ Variable Absent |
Relative Risk |
c2 p-Value |
| CCS
Class II vs. I |
16 |
0.50% |
2 /
16 |
12.50% |
26
/ 301 |
8.64% |
1.45 |
0.5958 |
| CCS
Class III vs. I |
1,158 |
36.35% |
111
/ 1,158 |
9.59% |
26
/ 301 |
8.64% |
1.11 |
0.6156 |
| CCS
Class IV vs. I |
874 |
27.43% |
153
/ 874 |
17.51% |
26
/ 301 |
8.64% |
2.03 |
0.0002 |
| |
| NYHA
Class II vs. I |
341 |
10.70% |
39
/ 341 |
11.44% |
16
/ 140 |
11.43% |
1 |
0.9979 |
| NYHA
Class III vs. I |
1,143 |
35.88% |
107
/ 1,143 |
9.36% |
16
/ 140 |
11.43% |
0.82 |
0.4329 |
| NYHA
Class IV vs. I |
1,040 |
32.64% |
173
/ 1,040 |
16.63% |
16
/ 140 |
11.43% |
1.46 |
0.1149 |
| |
| Aortic
Valve Disease |
269 |
8.44% |
34
/ 269 |
12.64% |
370
/ 2,917 |
12.68% |
1 |
0.9831 |
| Mitral
Valve Disease |
2,677 |
84.02% |
347
/ 2,677 |
12.96% |
57
/ 509 |
11.20% |
1.16 |
0.2730 |
| Tricuspid
Valve Disease |
178 |
5.59% |
22
/ 178 |
12.36% |
382
/ 3,008 |
12.70% |
0.97 |
0.8946 |
| Pulmonic
Valve Disease |
26 |
0.82% |
2 /
26 |
7.69% |
402
/ 3,160 |
12.72% |
0.6 |
0.4428 |
| |
| Reoperation
#1 vs. First Op |
435 |
13.65% |
65
/ 435 |
14.94% |
331
/ 2,719 |
12.17% |
1.23 |
0.1056 |
| Multiple
Reoperations vs. First Op |
32 |
1.00% |
8 /
32 |
25.00% |
331
/ 2,719 |
12.17% |
2.05 |
0.0282 |
| |
| Urgent
vs. Elective |
828 |
25.99% |
121
/ 828 |
14.61% |
174
/ 2,034 |
8.55% |
1.71 |
0.0000 |
| Emergent
vs. Elective |
231 |
7.25% |
60
/ 231 |
25.97% |
174
/ 2,034 |
8.55% |
3.04 |
0.0000 |
| Emergent/Salvage
vs. Elective |
93 |
2.92% |
49
/ 93 |
52.69% |
174
/ 2,034 |
8.55% |
6.16 |
0.0000 |
| |
| Double
Vessel Disease vs. Single |
879 |
27.59% |
128
/ 879 |
14.56% |
60
/ 773 |
7.76% |
1.88 |
0.0000 |
| Triple
Vessel Disease vs. Single |
1,392 |
43.69% |
197
/ 1,392 |
14.15% |
60
/ 773 |
7.76% |
1.82 |
0.0000 |
| |
| Left
Main Disease |
406 |
12.74% |
76
/ 406 |
18.72% |
328
/ 2,780 |
11.80% |
1.59 |
0.0001 |
| |
| Preop
IABP |
436 |
13.68% |
123
/ 436 |
28.21% |
281
/ 2,750 |
10.22% |
2.76 |
0.0000 |
| |
| Age
61 - 65 vs. Age < 60 |
415 |
13.03% |
43
/ 415 |
10.36% |
49
/ 541 |
9.06% |
1.14 |
0.498 |
| Age
66 - 70 vs. Age < 60 |
591 |
18.55% |
70
/ 591 |
11.84% |
44
/ 475 |
9.26% |
1.28 |
0.1753 |
| Age
71 - 80 vs. Age < 60 |
1,369 |
42.97% |
195
/ 1,369 |
14.24% |
44
/ 475 |
9.26% |
1.54 |
0.0054 |
| Age
> 80 vs. Age < 60 |
270 |
8.47% |
47
/ 270 |
17.41% |
44
/ 475 |
9.26% |
1.88 |
0.0011 |
| |
| E.F.
45% - 54% vs. E.F. =55% |
654 |
20.53% |
97
/ 654 |
14.83% |
78
/ 853 |
9.14% |
1.62 |
0.0006 |
| E.F.
35% - 44% vs. E.F. =55% |
651 |
20.43% |
88
/ 651 |
13.52% |
78
/ 853 |
9.14% |
1.48 |
0.0073 |
| E.F.
25% - 34% vs. E.F. =55% |
344 |
10.80% |
59
/ 344 |
17.15% |
78
/ 853 |
9.14% |
1.88 |
0.0001 |
E.F.<
25% vs. E.F. =
| |
