Value | Category | Cases | |
---|---|---|---|
-9 | Don't know (spontaneous) | 4 |
0.5%
|
-7 | Does not apply | 2 |
0.3%
|
0 | No obstacle | 144 |
18.9%
|
1 | Minor obstacle | 171 |
22.5%
|
2 | Moderate obstacle | 292 |
38.4%
|
3 | Major obstacle | 110 |
14.5%
|
4 | Very severe obstacle | 37 |
4.9%
|