| Value | Category | Cases | |
|---|---|---|---|
| 1 | Definitely not | 88 |
3.9%
|
| 2 | It may not harmful | 189 |
8.3%
|
| 3 | It may be harmful | 547 |
24%
|
| 4 | Definitely yes | 1459 |
63.9%
|
| Sysmiss | 17 |