Value | Category | Cases | |
---|---|---|---|
-9 | Don't know (spontaneous) | 1 |
0.3%
|
-7 | Does not apply | 1 |
0.3%
|
0 | No obstacle | 32 |
8.5%
|
1 | Minor obstacle | 27 |
7.2%
|
2 | Moderate obstacle | 153 |
40.6%
|
3 | Major obstacle | 61 |
16.2%
|
4 | Very severe obstacle | 102 |
27.1%
|