Value | Category | Cases | |
---|---|---|---|
-9 | Don't know (spontaneous) | 1 |
0.2%
|
-7 | Does not apply | 1 |
0.2%
|
0 | No obstacle | 251 |
41.8%
|
1 | Minor obstacle | 137 |
22.8%
|
2 | Moderate obstacle | 121 |
20.1%
|
3 | Major obstacle | 87 |
14.5%
|
4 | Very severe obstacle | 3 |
0.5%
|