RISK VARIABLE

Count

% of Pop.

Mortality w/ Variable Present

Mortality w/ Variable Absent

Relative Risk

c² p-Value

CCS Class II vs. I

74

7.36%

5/ 74

6.76%

11/ 179

6.15%

1.16

0.8560

CCS Class III vs. I

224

22.29%

14/ 224

6.25%

11/ 179

6.15%

1.02

0.9650

CCS Class IV vs. I

118

11.74%

21/ 118

17.80%

11/ 179

6.15%

2.89

0.0015

NYHA Class II vs. I

104

10.35%

2/ 104

1.92%

6/ 36

16.67%

0.12

0.0010

NYHA Class III vs. I

399

39.70%

26/ 399

6.52%

6/ 36

16.67%

0.39

0.0250

NYHA Class IV vs. I

234

23.28%

28/ 234

11.97%

6/ 36

16.67%

0.72

0.4290

Aortic Valve Disease

874

86.97%

72/ 874

8.24%

14/ 131

10.69%

0.77

0.3501

Mitral Valve Disease

871

86.67%

73/ 871

8.38%

13/ 134

9.70%

0.86

0.6110

Tricuspid Valve Disease

75

7.46%

9/ 75

12.00%

77/ 930

8.28%

1.45

0.2679

Pulmonic Valve Disease

6

0.60%

0/ 6

0.00%

86/ 999

8.61%

0.00

0.4523

Reoperation #1 vs. First Op

201

20.00%

19/ 201

9.45%

61/ 761

8.02%

1.18

0.5117

Multiple Reoperations vs. First Op

43

4.28%

6/ 43

13.95%

61/ 761

8.02%

1.74

0.1705

Urgent vs. Elective

192

19.10%

14/ 192

7.29%

61/ 780

7.82%

0.93

0.8057

Emergent vs. Elective

26

2.59%

5/ 26

19.23%

61/ 780

7.82%

2.46

0.0369

Emergent/Salvage vs. Elective

7

0.70%

6/ 7

85.71%

61/ 780

7.82%

10.96

0.0000

Double Vessel Disease vs. Single

12

1.19%

5/ 12

41.67%

2/ 7

28.57%

1.46

0.5680

Triple Vessel Disease vs. Single

6

0.60%

2/ 6

33.33%

2/ 7

28.57%

1.17

0.8530

Left Main Disease

4

0.40%

0/ 4

0.00%

86/ 1,001

8.59%

0.00

0.5399

Preop IABP

15

1.49%

7/ 15

46.67%

79/ 990

7.98%

5.85

0.0000

Age 60 - 65 vs. Age < 60

148

14.73%

9/ 148

6.08%

16/ 392

4.08%

1.49

0.3240

Age 66 - 70 vs. Age < 60

158

15.72%

17/ 158

10.76%

16/ 392

4.08%

2.64

0.0028

Age 71 - 80 vs. Age < 60

257

25.57%

34/ 257

13.23%

16/ 392

4.08%

3.24

0.0000

Age > 80 vs. Age < 60

50

4.98%

10/ 50

20.00%

16/ 392

4.08%

4.90

0.0000

E.F. 45% - 54% vs. E.F. >=55%

202

20.10%

15/ 202

7.43%

31/ 371

8.36%

0.89

0.6955

E.F. 35% - 44% vs. E.F. >=55%

106

10.55%

9/ 106

8.49%

31/ 371

8.36%

1.02

0.9648

E.F. 25% - 34% vs. E.F. >=55%

55

5.47%

7/ 55

12.73%

31/ 371

8.36%

1.52

0.2885

E.F.< 25% vs. E.F. >=55%

14

1.39%

3/ 14

21.43%

31/ 371

8.36%

2.56

0.0906

E.F. Unknown vs. E.F. >=55%

257

25.57%

21/ 257

8.17%

31/ 371

8.36%

0.98

0.9342

LVEDP <15

172

17.11%

10/ 172

5.81%

29/ 249

11.65%

0.50

0.0420

LVEDP >=15

249

24.78%

29/ 249

11.65%

10/ 172

5.81%

2.01

0.0420

PA Sys <30

48

4.78%

1/ 48

2.08%

49/ 540

9.07%

0.22

0.0960

PA Sys >=30

540

53.73%

49/ 540

9.07%

1/ 48

2.08%

4.50

0.0960

PA Diast <15

84

8.36%

4/ 84

4.76%

45/ 481

9.36%

0.51

0.1680

PA Diast >=15

481

47.86%

45/ 481

9.36%

4/ 84

4.76%

1.97

0.1680

PA Wedge <15

93

9.25%

4/ 93

4.30%

38/ 435

8.74%

0.49

0.1510

PA Wedge >=15

435

43.28%

38/ 435

8.74%

4/ 93

4.30%

2.03

0.1510