RISK VARIABLE

Count

% of Pop.

Mortality w/ Variable Present

Mortality w/Variable Absent

Relative Risk

c² p-Value

Blood Cardioplegia

7,150

83.19%

474/ 7,150

6.63%

105/ 1,445

7.27%

0.91

0.3782

Cryst Cardioplegia

1,789

20.81%

109/ 1,789

6.09%

470/ 6,806

6.91%

0.88

0.2222

O2 Cryst Cardioplegia

270

3.14%

21/ 270

7.78%

558/ 8,325

6.70%

1.16

0.4879

Antegrade Cardioplegia

7,269

84.57%

484/ 7,269

6.66%

95/ 1,326

7.16%

0.93

0.4990

Retrograde Cardioplegia

6,571

76.45%

447/ 6,571

6.80%

132/ 2,024

6.52%

1.04

0.6594

Warm Cardioplegia

2,562

29.81%

175/ 2,562

6.83%

404/ 6,033

6.70%

1.02

0.8205

Cold Cardioplegia

7,725

89.88%

516/ 7,725

6.68%

63/ 870

7.24%

0.92

0.5308

Inotropes Leaving OR

4,894

56.94%

406/ 4,894

8.30%

173/ 3,701

4.67%

1.77

0.0000

Antiarrhy Leaving OR

855

9.95%

102/ 855

11.93%

477/ 7,740

6.16%

1.94

0.0000

Atrial Pacing

2,664

30.99%

210/ 2,664

7.88%

369/ 5,931

6.22%

1.27

0.0045

Ventriclar Pacing

2,485

28.91%

216/ 2,485

8.69%

363/ 6,110

5.94%

1.46

0.0000

IntraOp IABP

402

4.68%

127/ 402

31.59%

452/ 8,193

5.52%

5.73

0.0000