Value | Category | Cases | |
---|---|---|---|
-9 | Don't know (spontaneous) | 1 |
0.2%
|
-7 | Does not apply | 3 |
0.5%
|
0 | No obstacle | 225 |
37.5%
|
1 | Minor obstacle | 96 |
16%
|
2 | Moderate obstacle | 83 |
13.8%
|
3 | Major obstacle | 114 |
19%
|
4 | Very severe obstacle | 78 |
13%
|