| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 0 |
0%
|
| 0 | Less than one day | 21 |
36.2%
|
| 1 | 18 |
31%
|
|
| 2 | 6 |
10.3%
|
|
| 3 | 1 |
1.7%
|
|
| 4 | 1 |
1.7%
|
|
| 5 | 3 |
5.2%
|
|
| 6 | 1 |
1.7%
|
|
| 7 | 2 |
3.4%
|
|
| 10 | 1 |
1.7%
|
|
| 55 | 1 |
1.7%
|
|
| 60 | 1 |
1.7%
|
|
| 90 | 1 |
1.7%
|
|
| 144 | 1 |
1.7%
|
|
| Sysmiss | 92 |