STS National Database
STS CANADIAN CARDIAC SURGERY DATABASE
1997 CAB + MITRAL VALVE REPAIR PATIENTS
UNIVARIATE ANALYSIS: PREOPERATIVE RISK VARIABLES

PATIENT POPULATION:
OPERATIVE SURVIVORS:
OPERATIVE MORTALITIES:
25
23 ( 92.00% )
2 ( 8.00% )
RISK VARIABLE Count % of Pop. Mortality w/ Variable Present Mortality w/ Variable Absent Relative Risk c2 p-Value
Male 15 60.00% 1/15 6.67% 1/10 10.00% 0.67 0.7634
Female 10 40.00% 1/10 10.00% 1/15 6.67% 1.50 0.7634
 
Caucasian 25 100.00% 2/25 8.00%        
Non-Caucasian 0       2/25 8.00%    
 
Smoking History 12 48.00% 1/12 8.33% 1/13 7.69% 1.08 0.9529
Family History 17 68.00% 2/17 11.76% 0/8 0.00%   0.3118
Diabetes 4 16.00% 0/4 0.00% 2/21 9.52% 0.00 0.5199
Morbid Obesity 2 8.00% 0/2 0.00% 2/23 8.70% 0.00 0.6637
Hypercholesterolemia 19 76.00% 2/19 10.53% 0/6 0.00%   0.4074
Renal Failure 4 16.00% 0/4 0.00% 2/21 9.52% 0.00 0.5199
Renal Failure Requiring Dialysis 0       2/25 8.00%    
Hypertension 7 28.00% 2/7 28.57% 0/18 0.00%   0.0181
Pulmonary Hypertension 4 16.00% 0/4 0.00% 2/21 9.52% 0.00 0.5199
CVA 2 8.00% 2/2 100.00% 0/23 0.00%   0.0000
Endocarditis 0       2/25 8.00%    
Cardiomegaly 6 24.00% 1/6 16.67% 1/19 5.26% 3.17 0.3694
COPD 2 8.00% 0/2 0.00% 2/23 8.70% 0.00 0.6637
Immunosuppressive Rx 0       2/25 8.00%    
Peripheral Vascular Disease 4 16.00% 0/4 0.00% 2/21 9.52% 0.00 0.5199
Cerebrovascular Disease 1 4.00% 1/1 100.00% 1/24 4.17% 24.00 0.0005
 
Prior CAB 2 8.00% 1/2 50.00% 1/23 4.35% 11.50 0.0225
Prior Valve 0       2/25 8.00%    
Prior Other Cardiac 0       2/25 8.00%    
Prior Non-Cardiac 0       2/25 8.00%    
Prior Non-Surgical 9 36.00% 1/9 11.11% 1/16 6.25% 1.78 0.6672
 

PTCA To OR <6Hrs

0       2/25 8.00%    
PTCA To OR >6Hrs 1 4.00% 1/1 100.00% 1/24 4.17% 24.00 0.0005
 
Prior MI <6 Hrs vs. No MI 0       0/8 0.00%    
Prior MI 6 to 24 Hrs vs. No MI 0       0/8 0.00%    
Prior MI 1-7 Days vs. No MI 2 8.00% 0/2 0.00% 0/8 0.00%    
Prior MI 7-21 Days vs. No MI 1 4.00% 0/1 0.00% 0/8 0.00%    
Prior MI >21 Days vs. No MI 14 56.00% 2/14 14.29%