| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 1 |
0%
|
| 1 | Less than 45 days | 1695 |
51.9%
|
| 2 | 45 to 90 days | 1188 |
36.4%
|
| 3 | 91 to 180 days | 247 |
7.6%
|
| 4 | More than 180 days | 133 |
4.1%
|
| Sysmiss | 6112 |