Value | Category | Cases | |
---|---|---|---|
-9 | Don't know (spontaneous) | 2 |
0.3%
|
-7 | Does not apply | 1 |
0.2%
|
0 | No obstacle | 51 |
8.5%
|
1 | Minor obstacle | 83 |
13.8%
|
2 | Moderate obstacle | 79 |
13.1%
|
3 | Major obstacle | 171 |
28.4%
|
4 | Very severe obstacle | 216 |
35.8%
|