Value | Category | Cases | |
---|---|---|---|
-9 | Don't know (spontaneous) | 6 |
1.7%
|
-7 | Does not apply | 70 |
19.4%
|
0 | No obstacle | 180 |
50%
|
1 | Minor obstacle | 30 |
8.3%
|
2 | Moderate obstacle | 28 |
7.8%
|
3 | Major obstacle | 18 |
5%
|
4 | Very severe obstacle | 28 |
7.8%
|