Table 5.
DIF testing WOMAC pain items for participants with Knee OA
| Age | Gender | Social class | Townsend | Employed | Mood | BMI | Nojoints | |
|---|---|---|---|---|---|---|---|---|
| SR DIF | 5,3 | 3,5 | none | 3 | 3 | 1 | 2 | 3 |
Key: Normal text: unpurified DIF items; Bold: final purified DIF items.
Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.