| Value |
Category |
| 0 |
|
| 1 |
Both father and mother alive |
| 2 |
Only father alive |
| 3 |
Only mother alive |
| 4 |
None alive |
| 5 |
Don't know |
| Sysmiss |
|
Warning: these figures indicate the number of cases found in the data file. They cannot be interpreted as summary statistics of the population of interest.