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Recoding scheme for sarcopenia example.
| Category | Subitem 1 | Subitem 2 | Subitem 3 |
|---|---|---|---|
| 1 | 1O | NA | NA |
| 2 | 2O | 1U | NA |
| 3 | 2O | 2U | NA |
| 4 | 3O | NA | 1U |
| 5 | 2O | 3U | NA |
| 6 | 3O | NA | 2U |
| 7 | 3O | NA | 3U |
| 8 | 4O | NA | NA |
Superscripts (U) and (O) are respectively used to indicate unordered and ordered categories; dummy coding is used and the category labeled 1U is used as reference.
