RISK VARIABLE

Count

% of Pop.

Mortality w/ Variable Present

Mortality w/ Variable Absent

Relative Risk

c² p-Value

Blood Cardioplegia

3,339

80.44%

170/ 3,339

5.09%

52/ 812

6.40%

0.80

0.1360

Cryst Cardioplegia

881

21.22%

46/ 881

5.22%

176/ 3,270

5.38%

0.97

0.8505

O2 Cryst Cardioplegia

139

3.35%

9/ 139

6.47%

213/ 4,012

5.31%

1.22

0.5481

Antegrade Cardioplegia

3,591

86.51%

181/ 3,591

5.04%

41/ 560

7.32%

0.69

0.0256

Retrograde Cardioplegia

2,501

60.25%

124/ 2,501

4.96%

98/ 1,650

5.94%

0.83

0.1690

Warm Cardioplegia

1,041

25.08%

57/ 1,041

5.48%

165/ 3,110

5.31%

1.03

0.8328

Cold Cardioplegia

3,671

88.44%

181/ 3,671

4.93%

41/ 480

8.54%

0.58

0.0009

Inotropes Leaving OR

2,244

54.06%

145/ 2,244

6.46%

77/ 1,907

4.04%

1.60

0.0005

Antiarrhy Leaving OR

337

8.12%

21/ 337

6.23%

201/ 3,814

5.27%

1.18

0.4521

Atrial Pacing

1,120

26.98%

74/ 1,120

6.61%

148/ 3,031

4.88%

1.35

0.0284

Ventriclar Pacing

1,105

26.62%

81/ 1,105

7.33%

141/ 3,046

4.63%

1.58

0.0006

IntraOp IABP

107

2.58%

35/ 107

32.71%

187/ 4,044

4.62%

7.07

0.0000