Value | Category | Cases | |
---|---|---|---|
-9 | Don't know (spontaneous) | 2 |
0.5%
|
-7 | Does not apply | 14 |
3.5%
|
0 | No obstacle | 210 |
52.2%
|
1 | Minor obstacle | 73 |
18.2%
|
2 | Moderate obstacle | 49 |
12.2%
|
3 | Major obstacle | 30 |
7.5%
|
4 | Very severe obstacle | 24 |
6%
|