Name: vpsam23x
Description: Number of attempts made to take blood sample- at age 77 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. |
Data-Coding 10676
Name: vpsam23x
Name: vpsam23x
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2 Categories
| Coding | Meaning |
|---|---|
| 1 | Sample taken on first attempt |
| 2 | Sample taken on second attempt |
1 Data-Field
| Field ID | Description | Category |
|---|---|---|
| 10676 | Number of attempts made to take blood sample- at age 77 years | Blood sample |
National Survey of Health and Development 1946 Cohort