| Value | Category | Cases | |
|---|---|---|---|
| -4 | Missing data | 67 |
1.4%
|
| -3 | Refused to answer | 0 |
0%
|
| -2 | Not applicable | 0 |
0%
|
| -1 | Don't know | 0 |
0%
|
| 1 | Yes-On site | 79 |
1.6%
|
| 2 | Yes-Off site | 901 |
18.2%
|
| 3 | No | 3893 |
78.8%
|
| Sysmiss | 829 |