| Value |
Category |
| 1 |
1. Fath=1, Moth=1 |
| 2 |
2. Fath=1, Moth>1 |
| 3 |
3. Fath>1, Moth=1 |
| 4 |
4. Fath>1, Moth>1 |
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.