RISK VARIABLE

Count

% of Pop.

Mortality w/ Variable Present

Mortality w/ Variable Absent

Relative Risk

c² p-Value

Blood Cardioplegia

6,736

80.65%

261/ 6,736

3.87%

59/ 1,616

3.65%

1.06

0.6739

Cryst Cardioplegia

1,839

22.02%

68/ 1,839

3.70%

252/ 6,513

3.87%

0.96

0.7351

O2 Cryst Cardioplegia

254

3.04%

11/ 254

4.33%

309/ 8,098

3.82%

1.13

0.6738

Antegrade Cardioplegia

6,685

80.04%

253/ 6,685

3.78%

67/ 1,667

4.02%

0.94

0.6553

Retrograde Cardioplegia

6,039

72.31%

224/ 6,039

3.71%

96/ 2,313

4.15%

0.89

0.3472

Warm Cardioplegia

2,262

27.08%

78/ 2,262

3.45%

242/ 6,090

3.97%

0.87

0.2663

Cold Cardioplegia

7,533

90.19%

290/ 7,533

3.85%

30/ 819

3.66%

1.05

0.7915

Inotropes Leaving OR

3,697

44.26%

217/ 3,697

5.87%

103/ 4,655

2.21%

2.65

0.0000

Antiarrhy Leaving OR

767

9.18%

50/ 767

6.52%

270/ 7,585

3.56%

1.83

0.0000

Atrial Pacing

2,053

24.58%

108/ 2,053

5.26%

212/ 6,299

3.37%

1.56

0.0001

Ventriclar Pacing

1,803

21.59%

112/ 1,803

6.21%

208/ 6,549

3.18%

1.96

0.0000

IntraOp IABP

159

1.90%

55/ 159

34.59%

265/ 8,193

3.23%

10.69

0.0000