Description: Does participant have Insulin-like growth factor (IGF) data - at age 60-64 years
This is a flat (unstructured) list which uses integers to represent categories or special values.
| Coding can be downloaded here as a tab-separated file. |
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| Coding | Meaning |
|---|---|
| 1 | data from main post-pilot study |
| 2 | data from pilot study (no COV provided) |
| Field ID | Description | Category |
|---|---|---|
| 14012 | Does participant have Insulin-like growth factor (IGF) data - at age 60-64 years | Blood processing |
National Survey of Health and Development 1946 Cohort