Value | Category | Cases | |
---|---|---|---|
-9 | Don't know (spontaneous) | 5 |
0.5%
|
-7 | Does not apply | 12 |
1.2%
|
0 | No obstacle | 146 |
14.3%
|
1 | Minor obstacle | 103 |
10.1%
|
2 | Moderate obstacle | 198 |
19.4%
|
3 | Major obstacle | 300 |
29.4%
|
4 | Very severe obstacle | 255 |
25%
|