| Value | Category | Cases | |
|---|---|---|---|
| 1 | Less than 1 hour | 1585 |
83.9%
|
| 2 | Between 1 -23 hours | 206 |
10.9%
|
| 3 | 24 hours or more | 78 |
4.1%
|
| 4 | Don't remember | 21 |
1.1%
|
| Sysmiss | 2825 |