| Value | Category |
|---|---|
| 10 | No |
| 20 | Yes, any information source |
| 21 | Yes, from vac card |
| 22 | Yes, date on vaccination card |
| 23 | Yes, from vac card without date |
| 24 | Yes, from mother's report |
| 97 | Don't know |
| 98 | Missing |
| 99 | NIU (not in universe) |
| var_concept.title | Vocabulary |
|---|---|
| Measles vaccinations Variables -- TOPICS | IPUMS |