Value | Category |
---|---|
1 | Month and year - information complete |
2 | Month and age - year imputed |
3 | Year and age - month imputed |
4 | Year and age - year ignored |
5 | Year - age/month imputed |
6 | Age - year/month imputed |
7 | Month - age/year imputed |
8 | None - all imputed |
Sysmiss |