| Value | Category |
|---|---|
| 0 | No stepmother present |
| 1 | Improbable age difference |
| 2 | Spouse of father |
| 3 | No surviving children |
| 4 | Number of children born/children surviving check |
| var_concept.title | Vocabulary |
|---|---|
| Constructed Family Interrelationship Variables -- PERSON | IPUMS |