Value | Category | Cases | |
---|---|---|---|
-9 | Don't know (spontaneous) | 2 |
0.6%
|
-7 | Does not apply | 1 |
0.3%
|
0 | No obstacle | 160 |
44.4%
|
1 | Minor obstacle | 76 |
21.1%
|
2 | Moderate obstacle | 74 |
20.6%
|
3 | Major obstacle | 31 |
8.6%
|
4 | Very severe obstacle | 16 |
4.4%
|