Name: vpsys23x
Description: Which system was used 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 10679
Name: vpsys23x
Name: vpsys23x
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2 Categories
| Coding | Meaning |
|---|---|
| 1 | Vacutainer needle |
| 2 | Butterfly needle |
1 Data-Field
| Field ID | Description | Category |
|---|---|---|
| 10679 | Which system was used to take blood sample? - at age 77 years | Blood sample |
National Survey of Health and Development 1946 Cohort