Figure 14:
Distribution and Priority Criteria for Coronary Revascularisation

Degree of coronary artery obstruction 
% 
Original Weights 
Regression Weights 
No CAD 50% and over 
0 
0 
0 
1 VD 50  74% 
1 
6 
7 
less than 1 VD 50  74% 
0 
7 
8 
1 VD (75%) 
1 
7 
8 
1 VD ( 95% and over) 
1 
10 
13 
2 VD (50  94%) 
4 
11 
14 
2 VD (both 95% and over) 
2 
13 
14 
1 VD, 95% and over proximal 
2 
14 
17 
2 VD, 95% and over LAD 
1 
14 
17 
2 VD, 95% and over proximal LAD 
5 
17 
17 
3 VD 
4 
17 
17 
3 VD, 95% and over in at least 1 
15 
19 
17 
3 VD, 75% proximal LAD 
31 
20 
17 
3 VD, 95% and over proximal LAD 
14 
22 
25 
Left main (50%) 
6 
23 
35 
Left main (75%) 
13 
25 
29 
Left main (95% and over) 
1 
30 
33 
Ability to work, give care to dependent/s or live independently 
% 
Original Weights 
Regression Weights 
Immediately threatened 
36 
8 
14 
Threatened but not immediately 
25 
4 
5 
Not threatened but more difficult 
38 
2 
1 
Severe Angina 
% 
Original Weights 
Regression Weights 
Class I

3 
1 
1 
Class II 
24 
2 
2 
Class III 
33 
10 
7 
Class IVA

11 
12 
20 
Class IVB 
11 
16 
25 
Class IVC 
18 
20 
27 
Exercise Stress test 
% 
Original Weights 
Regression Weights

Very positive 
41 
20 
20 
Positive 
30 
10 
11 
(???) 
17 
5 
7 
Negative 
10 
0 
0 
Degree of risk 
% 
Original Weights 
Regression Weights 
Low (less than 3%) 

10 

Medium (36%) 

5 

High (over 6%) 

0 

Ejection Fraction 
% 
Original Weights 
Regression Weights 
under 20% 

0 

2035% 

10 

3550% 

8 

over 50% 

6 
