| Value | Category | Cases | |
|---|---|---|---|
| 1 | month and year - information complete | 15240 |
72.8%
|
| 2 | month and age - year imputed | 34 |
0.2%
|
| 3 | year and age - month imputed | 0 |
0%
|
| 5 | year - age/month imputed | 5047 |
24.1%
|
| 6 | age - year/month imputed | 606 |
2.9%
|
| 7 | month - age/year imputed | 0 |
0%
|
| 8 | none - all imputed | 0 |
0%
|
| Sysmiss | 14856 |