RISK VARIABLE

Count

% of Pop.

Mortality w/Variable Present

Mortality w/Variable Absent

Relative Risk

c² p-Value

Blood Cardioplegia

135,252

79.14%

3,981/ 135,252

2.94%

1,047/ 35,643

2.94%

1.00

0.9530

Cryst Cardioplegia

36,293

21.24%

1,035/ 36,293

2.85%

3,993/ 134,602

2.97%

0.96

0.2510

O2 Cryst Cardioplegia

6,383

3.74%

205/ 6,383

3.21%

4,823/ 164,512

2.93%

1.10

0.1941

Antegrade Cardioplegia

153,524

89.84%

4,372/ 153,524

2.85%

656/ 17,371

3.78%

0.75

0.0000

Retrograde Cardioplegia

76,291

44.64%

2,608/ 76,291

3.42%

2,420/ 94,604

2.56%

1.34

0.0000

Warm Cardioplegia

48,120

28.16%

1,534/ 48,120

3.19%

3,494/ 122,775

2.85%

1.12

0.0002

Cold Cardioplegia

150,021

87.79%

4,330/ 150,021

2.89%

698/ 20,874

3.34%

0.86

0.0002

Inotropes Leaving OR

68,944

40.34%

3,342/ 68,944

4.85%

1,686/ 101,951

1.65%

2.93

0.0000

Antiarrhy Leaving OR

11,470

6.71%

887/ 11,470

7.73%

4,141/ 159,425

2.60%

2.98

0.0000

Atrial Pacing

32,301

18.90%

1,426/ 32,301

4.41%

3,602/ 138,594

2.60%

1.70

0.0000

Ventriclar Pacing

24,461

14.31%

1,394/ 24,461

5.70%

3,634/ 146,434

2.48%

2.30

0.0000

IntraOp IABP

3,952

2.31%

943/ 3,952

23.86%

4,085/ 166,943

2.45%

9.75

0.0000