| Value | Category | Cases | |
|---|---|---|---|
| 1 | Within 1 month or less | 27 |
55.1%
|
| 2 | In more than 1 month to 3 month | 13 |
26.5%
|
| 3 | In more than 3 month | 8 |
16.3%
|
| 9 | Unspecified | 1 |
2%
|
| Sysmiss | 66608 |