STS NATIONAL CARDIAC SURGERY DATABASE
1996 CAB + MITRAL VALVE REPLACEMENT PATIENTS
UNIVARIATE ANALYSIS: PRE OPERATIVE RISK VARIABLES
PATIENT POPULATION: 2,822
OPERATIVE SURVIVORS: 2,465
OPERATIVE MORTALITIES: 357
RISK VARIABLE | Count | % of Pop. | Mortality w/Variable Present | Mortality w/Variable Absent | Relative Risk | c 2 p-Value | ||
CCS Class II vs. I | 200 | 7.09% | 13/200 | 6.50% | 14/199 | 7.04% | 0.92 | 0.8310 |
CCS Class III vs. I | 692 | 24.52% | 65/692 | 9.39% | 14/199 | 7.04% | 1.33 | 0.3020 |
CCS Class IV vs. I | 698 | 24.73% | 140/698 | 20.06% | 14/199 | 7.04% | 2.85 | 0.0000 |
NYHA Class II vs. I | 206 | 7.30% | 14/206 | 6.80% | 7/105 | 6.67% | 1.02 | 0.9660 |
NYHA Class III vs. I | 960 | 34.02% | 87/960 | 9.06% | 7/105 | 6.67% | 1.36 | 0.4110 |
NYHA Class IV vs. I | 914 | 32.39% | 176/914 | 19.26% | 7/105 | 6.67% | 2.89 | 0.0015 |
Aortic Valve Disease | 187 | 6.63% | 28/187 | 14.97% | 329/2,635 | 12.49% | 1.20 | 0.3228 |
Mitral Valve Disease | 2,318 | 82.14% | 292/2,318 | 12.60% | 65/504 | 12.90% | 0.98 | 0.8544 |
Tricuspid Valve Disease | 123 | 4.36% | 15/123 | 12.20% | 342/2,699 | 12.67% | 0.96 | 0.8765 |
Pulmonic Valve Disease | 16 | 0.57% | 1/16 | 6.25% | 356/2,806 | 12.69% | 0.49 | 0.4399 |
Reoperation #1 vs. First Op | 380 | 13.47% | 56/380 | 14.74% | 71/2,401 | 12.24% | 1.20 | 0.1736 |
Multiple Reoperations vs. First Op | 41 | 1.45% | 7/41 | 17.07% | 71/2,401 | 12.24% | 1.39 | 0.3511 |
Urgent vs. Elective | 735 | 26.05% | 104/735 | 14.15% | 150/1,800 | 8.33% | 1.70 | 0.0000 |
Emergent vs. Elective | 215 | 7.62% | 70/215 | 32.56% | 150/1,800 | 8.33% | 3.91 | 0.0000 |
Emergent/Salvage vs. Elective | 72 | 2.55% | 33/72 | 45.83% | 150/1,800 | 8.33% | 5.50 | 0.0000 |
Double Vessel Disease vs. Single | 774 | 27.43% | 82/774 | 10.59% | 71/710 | 10.00% | 1.06 | 0.7070 |
Triple Vessel Disease vs. Single | 1,253 | 44.40% | 191/1,253 | 15.24% | 71/710 | 10.00% | 1.52 | 0.0010 |
Left Main Disease | 321 | 11.37% | 49/321 | 15.26% | 308/2,501 | 12.32% | 1.24 | 0.1345 |
Preop IABP | 386 | 13.68% | 103/386 | 26.68% | 254/2,436 | 10.43% | 2.56 | 0.0000 |
Age 60 - 65 vs. Age < 60 | 404 | 14.32% | 35/404 | 8.66% | 29/410 | 7.07% | 1.22 | 0.3993 |
Age 66 - 70 vs. Age < 60 | 548 | 19.42% | 67/548 | 12.23% | 29/410 | 7.07% | 1.73 | 0.0086 |
Age 71 - 80 vs. Age < 60 | 1,237 | 43.83% | 178/1,237 | 14.39% | 29/410 | 7.07% | 2.03 | 0.0001 |
Age > 80 vs. Age < 60 | 223 | 7.90% | 48/223 | 21.52% | 29/410 | 7.07% | 3.04 | 0.0000 |
E.F. 45% - 54% vs. E.F. >=55% | 571 | 20.23% | 78/571 | 13.66% | 64/783 | 8.17% | 1.67 | 0.0011 |
E.F. 35% - 44% vs. E.F. >=55% | 478 | 16.94% | 52/478 | 10.88% | 64/783 | 8.17% | 1.33 | 0.1069 |
E.F. 25% - 34% vs. E.F. >=55% | 278 | 9.85% | 48/278 | 17.27% | 64/783 | 8.17% | 2.11 | 0.0000 |
E.F.< 25% vs. E.F. >=55% | 98 | 3.47% | 29/98 | 29.59% | 64/783 | 8.17% | 3.62 | 0.0000 |
E.F. Unknown vs. E.F. >=55% | 614 | 21.76% | 86/614 | 14.01% | 64/783 | 8.17% | 1.71 | 0.0005 |
LVEDP <15 | 413 | 14.64% | 36/413 | 8.72% | 110/816 | 13.48% | 0.65 | 0.0150 |
LVEDP >=15 | 816 | 28.92% | 110/816 | 13.48% | 36/413 | 8.72% | 1.55 | 0.0150 |
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PA Sys <30 | 174 | 6.17% | 11/174 | 6.32% | 154/1,231 | 12.51% | 0.51 | 0.0180 |
PA Sys >=30 | 1,231 | 43.62% | 154/1,231 | 12.51% | 11/174 | 6.32% | 1.98 | 0.0180 |
PA Diast <15 | 2.93 | 10.38% | 19/293 | 6.48% | 139/1,072 | 12.97% | 0.50 | 0.0021 |
PA Diast >=15 | 1,072 | 37.99% | 139/1,072 | 12.97% | 19/293 | 6.48% | 2.00 | 0.0021 |
PA Wedge <15 | 282 | 9.99% | 24/282 | 8.51% | 115/933 | 12.33% | 0.69 | 0.0.780 |
PA Wedge >=15 | 933 | 33.06% | 115/933 | 12.33% | 24/282 | 8.51% | 1.45 | 0.0.780 |