| Value | Category | Cases | |
|---|---|---|---|
| 1 | Within 1 month or less | 3 |
33.3%
|
| 2 | In more than 1 month to 3 month | 4 |
44.4%
|
| 3 | In more than 3 month | 0 |
0%
|
| 9 | Unspecified | 2 |
22.2%
|
| Sysmiss | 9990 |