Value | Category | Cases | |
---|---|---|---|
-9 | Don't know (spontaneous) | 1 |
0.1%
|
-7 | Does not apply | 4 |
0.3%
|
0 | No obstacle | 453 |
37.8%
|
1 | Minor obstacle | 204 |
17%
|
2 | Moderate obstacle | 211 |
17.6%
|
3 | Major obstacle | 204 |
17%
|
4 | Very severe obstacle | 123 |
10.3%
|