Value | Category | Cases | |
---|---|---|---|
-9 | Don't know (spontaneous) | 1 |
0.3%
|
-7 | Does not apply | 1 |
0.3%
|
0 | No obstacle | 275 |
75.8%
|
1 | Minor obstacle | 33 |
9.1%
|
2 | Moderate obstacle | 34 |
9.4%
|
3 | Major obstacle | 17 |
4.7%
|
4 | Very severe obstacle | 2 |
0.6%
|