Value | Category | Cases | |
---|---|---|---|
-9 | Don't know (spontaneous) | 6 |
0.2%
|
-7 | Does not apply | 11 |
0.4%
|
0 | No obstacle | 599 |
22.7%
|
1 | Minor obstacle | 588 |
22.3%
|
2 | Moderate obstacle | 798 |
30.3%
|
3 | Major obstacle | 468 |
17.8%
|
4 | Very severe obstacle | 165 |
6.3%
|