Value | Category | Cases | |
---|---|---|---|
-9 | Don't know (spontaneous) | 3 |
0.5%
|
-7 | Does not apply | 62 |
10.3%
|
0 | No obstacle | 246 |
40.9%
|
1 | Minor obstacle | 159 |
26.5%
|
2 | Moderate obstacle | 79 |
13.1%
|
3 | Major obstacle | 40 |
6.7%
|
4 | Very severe obstacle | 12 |
2%
|