Value | Category | Cases | |
---|---|---|---|
-9 | Don't know (spontaneous) | 1 |
0.1%
|
-7 | Does not apply | 5 |
0.4%
|
0 | No obstacle | 178 |
14.8%
|
1 | Minor obstacle | 189 |
15.8%
|
2 | Moderate obstacle | 211 |
17.6%
|
3 | Major obstacle | 296 |
24.7%
|
4 | Very severe obstacle | 320 |
26.7%
|