STS NATIONAL CARDIAC SURGERY DATABASE
1996 ALL OTHER PROCEDURES
UNIVARIATE ANALYSIS: PRE OPERATIVE RISK VARIABLES
PATIENT POPULATION: 23,877
OPERATIVE SURVIVORS: 21,699
OPERATIVE MORTALITIES: 2,178
RISK VARIABLE | Count | % of Pop. | Mortality w/Variable Present |
| Mortality w/Variable Absent |
| Relative Risk | c 2 p-Value |
CCS Class II vs. I | 2,173 | 9.10% | 89/2,173 | 4.10% | 240/2,975 | 8.07% | 0.51 | 0.0000 |
CCS Class III vs. I | 4,989 | 20.89% | 331/4,989 | 6.63% | 240/2,975 | 8.07% | 0.82 | 0.0170 |
CCS Class IV vs. I | 4,538 | 19.01% | 721/4,538 | 15.89% | 240/2,975 | 8.07% | 1.97 | 0.0000 |
NYHA Class II vs. I | 2,420 | 10.14% | 108/2,420 | 4.46% | 192/2,886 | 6.65% | 0.67 | 0.0006 |
NYHA Class III vs. I | 6,204 | 25.98% | 425/6,204 | 6.85% | 192/2,886 | 6.65% | 1.03 | 0.7270 |
NYHA Class IV vs. I | 5,465 | 22.89% | 873/5,465 | 15.97% | 192/2,886 | 6.65% | 2.40 | 0.0000 |
Aortic Valve Disease | 4,662 | 19.53% | 476/4,662 | 10.21% | 1,702/19,215 | 8.86% | 1.15 | 0.0040 |
Mitral Valve Disease | 3,865 | 16.19% | 474/3,865 | 12.26% | 1,704/20,012 | 8.51% | 1.44 | 0.0000 |
Tricuspid Valve Disease | 1,462 | 6.12% | 182/1,462 | 12.45% | 1,996/22,415 | 8.90% | 1.40 | 0.0000 |
Pulmonic Valve Disease | 173 | 0.72% | 18/173 | 10.40% | 2,160/23,704 | 9.11% | 1.14 | 0.5564 |
Reoperation #1 vs. First Op | 3,136 | 13.13% | 400/3,136 | 12.76% | 1,665/20,011 | 8.32% | 1.53 | 0.0000 |
Multiple Reoperations vs. First Op | 730 | 3.06% | 113/730 | 15.48% | 1,665/20,011 | 8.32% | 1.86 | 0.0000 |
Urgent vs. Elective | 4,738 | 19.84% | 472/4,738 | 9.96% | 822/15,414 | 5.33% | 1.87 | 0.0000 |
Emergent vs. Elective | 2,868 | 12.01% | 495/2,868 | 17.26% | 822/15,414 | 5.33% | 3.24 | 0.0000 |
Emergent/Salvage vs. Elective | 857 | 3.59% | 389/857 | 45.39% | 822/15,414 | 5.33% | 8.51 | 0.0000 |
Double Vessel Disease vs. Single | 2,696 | 11.29% | 287/2,696 | 10.65% | 192/1,760 | 10.91% | 0.98 | 0.7810 |
Triple Vessel Disease vs. Single | 7,103 | 29.75% | 640/7,103 | 9.01% | 192/1,760 | 10.91% | 0.83 | 0.0140 |
Left Main Disease | 2,161 | 9.05% | 230/2,161 | 10.64% | 1,948/21,716 | 8.97% | 1.19 | 0.0100 |
Preop IABP | 1,423 | 5.96% | 382/1,423 | 26.84% | 1,796/22,454 | 8.00% | 3.36 | 0.0000 |
Age 60 - 65 vs. Age < 60 | 3,414 | 14.30% | 254/3,414 | 7.44% | 496/8,031 | 6.18% | 1.20 | 0.0124 |
Age 66 - 70 vs. Age < 60 | 3,886 | 16.28% | 349/3,886 | 8.98% | 496/8,031 | 6.18% | 1.45 | 0.0000 |
Age 71 - 80 vs. Age < 60 | 7,082 | 29.66% | 857/7,082 | 12.10% | 496/8,031 | 6.18% | 1.96 | 0.0000 |
Age > 80 vs. Age < 60 | 1,464 | 6.13% | 222/1,464 | 15.16% | 496/8,031 | 6.18% | 2.46 | 0.0000 |
E.F. 45% - 54% vs. E.F. >=55% | 3,351 | 14.03% | 279/3,351 | 8.33% | 374/5,781 | 6.47% | 1.29 | 0.0009 |
E.F. 35% - 44% vs. E.F. >=55% | 2,381 | 9.97% | 237/2,381 | 9.95% | 374/5,781 | 6.47% | 1.54 | 0.0000 |
E.F. 25% - 34% vs. E.F. >=55% | 1,555 | 6.51% | 176/1,555 | 11.32% | 374/5,781 | 6.47% | 1.75 | 0.0000 |
E.F.< 25% vs. E.F. >=55% | 968 | 4.05% | 132/968 | 13.64% | 374/5,781 | 6.47% | 2.11 | 0.0000 |
E.F. Unknown vs. E.F. >=55% | 9,841 | 41.22% | 980/9,841 | 9.96% | 374/5,781 | 6.47% | 1.54 | 0.0000 |
LVEDP <15 | 2,620 | 10.97% | 147/2,620 | 5.61% | 429/4,367 | 9.82% | 0.57 | 0.0000 |
LVEDP >=15 | 4,367 | 18.29% | 429/4,367 | 9.82% | 147/2,620 | 5.61% | 1.75 | 0.0000 |
PA Sys <30 | 1,767 | 7.40% | 74/1767 | 4.19% | 575/5,148 | 11.17% | 0.38 | 0.0000 |
PA Sys >=30 | 5,148 | 21.56% | 575/5,148 | 11.17% | 74/1767 | 4.19% | 2.67 | 0.0000 |
PA Diast <15 | 2,274 | 9.52% | 109/2,274 | 4.79% | 507/4,358 | 11.63% | 0.41 | 0.0000 |
PA Diast >=15 | 4,358 | 18.25% | 507/4,358 | 11.63% | 109/2,274 | 4.79% | 2.43 | 0.0000 |
PA Wedge <15 | 2,441 | 10.22% | 134/2,441 | 5.49% | 424/3,399 | 12.47% | 0.44 | 0.0000 |
PA Wedge >=15 | 3,399 | 14.24% | 424/3,399 | 12.47% | 134/2,441 | 5.49% | 2.27 | 0.0000 |