STS National Database
STS CANADIAN CARDIAC SURGERY DATABASE
1997 MITRAL VALVE REPAIR PATIENTS
UNIVARIATE ANALYSIS: PREOPERATIVE RISK VARIABLES
PATIENT POPULATION:
OPERATIVE SURVIVORS:
OPERATIVE MORTALITIES:		 41
41 ( 100.00% )
0 ( 0.00% )
RISK VARIABLE Count % of Pop. Mortality w/ Variable Present Mortality w/ Variable Absent Relative Risk c2 p-Value
Male 20 48.78% 0/20 0.00% 0/21 0.00%    
Female 21 51.22% 0/21 0.00% 0/20 0.00%    
 
Caucasian 40 97.56% 0/40 0.00% 0/1 0.00%    
Non-Caucasian 1 2.44% 0/1 0.00% 0/40 0.00%    
 
Smoking History 15 36.59% 0/15 0.00% 0/26 0.00%    
Family History 10 24.39% 0/10 0.00% 0/31 0.00%    
Diabetes 5 12.20% 0/5 0.00% 0/36 0.00%    
Morbid Obesity 2 4.88% 0/2 0.00% 0/39 0.00%    
Hypercholesterolemia 8 19.51% 0/8 0.00% 0/33 0.00%    
Renal Failure 1 2.44% 0/1 0.00% 0/40 0.00%    
Renal Failure Requiring Dialysis 0       0/41 0.00%    
Hypertension 13 31.71% 0/13 0.00% 0/28 0.00%    
Pulmonary Hypertension 11 26.83% 0/11 0.00% 0/30 0.00%    
CVA 1 2.44% 0/1 0.00% 0/40 0.00%    
Endocarditis 1 2.44% 0/1 0.00% 0/40 0.00%    
Cardiomegaly 2 4.88% 0/2 0.00% 0/39 0.00%    
COPD 2 4.88% 0/2 0.00% 0/39 0.00%    
Immunosuppressive Rx 1 2.44% 0/1 0.00% 0/40 0.00%    
Peripheral Vascular Disease 0       0/41 0.00%    
Cerebrovascular Disease 1 2.44% 0/1 0.00% 0/40 0.00%    
 
Prior CAB 1 2.44% 0/1 0.00% 0/40 0.00%    
Prior Valve 4 9.76% 0/4 0.00% 0/37 0.00%    
Prior Other Cardiac 2 4.88% 0/2 0.00% 0/39 0.00%    
Prior Non-Cardiac 0       0/41 0.00%    
Prior Non-Surgical 2 4.88% 0/2 0.00% 0/39 0.00%    
 
PTCA To OR <6Hrs 0       0/41 0.00%    
PTCA To OR >6Hrs 1 2.44% 0/1 0.00% 0/40 0.00%    
 
Prior MI <6 Hrs vs. No MI 0       0/39 0.00%    
Prior MI 6 to 24 Hrs vs. No MI 0       0/39 0.00%    
Prior MI 1-7 Days vs. No MI 0       0/39 0.00%    
Prior MI 7-21 Days vs. No MI 0       0/39 0.00%    
Prior MI >21 Days vs. No MI 2 4.88% 0/2 0.00% 0/39 0.00%    
 
Congestive Heart Failure 10 24.39% 0/10 0.00% 0/31 0.00%    
Unstable Angina
© 1999 The Society of Thoracic Surgeons.