| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 20 |
22%
|
| 0 | Less than one day | 35 |
38.5%
|
| 1 | 5 |
5.5%
|
|
| 2 | 3 |
3.3%
|
|
| 3 | 8 |
8.8%
|
|
| 4 | 2 |
2.2%
|
|
| 5 | 3 |
3.3%
|
|
| 6 | 3 |
3.3%
|
|
| 7 | 5 |
5.5%
|
|
| 9 | 1 |
1.1%
|
|
| 15 | 2 |
2.2%
|
|
| 21 | 2 |
2.2%
|
|
| 48 | 1 |
1.1%
|
|
| 60 | 1 |
1.1%
|
|
| Sysmiss | 260 |