Observes (OBS) and adjusted (κadj) agreement between radiologists in rating the presence of OA in 74 complete and 11 incomplete twin pairs participating in the ATR osteoarthritis study (split 0,1/2,3)
| Joint area | Specific features | Intra-rater (RAD1) | Intra-rater (RAD2) | Inter-rater | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| OBS | κadj | OBS | κadj | OBS | κadj | ||||||||
| DIP | JSN | 0.97 | 0.93 | 0.99 | 0.98 | 0.98 | 0.96 | ||||||
| OP | 0.95 | 0.91 | 0.98 | 0.96 | 0.97 | 0.93 | |||||||
| PIP | JSN | 0.98 | 0.95 | 0.99 | 0.99 | 0.98 | 0.97 | ||||||
| OP | 0.98 | 0.96 | 0.99 | 0.97 | 0.99 | 0.97 | |||||||
| MCP | JSN | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 | ||||||
| OP | 1.00 | 1.00 | 1.00 | 0.99 | 1.00 | 1.00 | |||||||
| 1st IP | JSN | 0.98 | 0.96 | 0.96 | 0.93 | 0.98 | 0.97 | ||||||
| OP | 0.89 | 0.78 | 0.96 | 0.93 | 0.93 | 0.86 | |||||||
| 1st CMC | JSN | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 | ||||||
| OP | 0.97 | 0.94 | 0.95 | 0.90 | 0.95 | 0.91 | |||||||
| Wrist | JSN | 0.97 | 0.94 | 0.99 | 0.97 | 0.98 | 0.96 | ||||||
| OP | 0.98 | 0.95 | 1.00 | 1.00 | 0.99 | 0.98 | |||||||
| Knee | JSN | 0.95 | 0.90 | 0.99 | 0.97 | 0.97 | 0.94 | ||||||
| OP | 0.94 | 0.88 | 0.94 | 0.89 | 0.94 | 0.88 | |||||||
| Hip | JSN | 0.98 | 0.97 | 1.00 | 1.00 | 1.00 | 0.99 | ||||||
| OP—acetabular | 0.92 | 0.85 | 0.93 | 0.85 | 0.93 | 0.86 | |||||||
| Op—femoral | 0.99 | 0.98 | 1.00 | 1.00 | 1.00 | 1.00 | |||||||