Value | Category | Cases | |
---|---|---|---|
-9 | Don't know (spontaneous) | 1 |
0.1%
|
-7 | Does not apply | 25 |
2.6%
|
0 | No obstacle | 460 |
48.6%
|
1 | Minor obstacle | 208 |
22%
|
2 | Moderate obstacle | 171 |
18.1%
|
3 | Major obstacle | 70 |
7.4%
|
4 | Very severe obstacle | 12 |
1.3%
|