Intra and inter-reader agreement assessed by κw and PEA
| Intra-reader | Inter-reader | |||
|---|---|---|---|---|
| Reader 1 κw/PEA (%) | Reader 2 κw/PEA (%) | Session 1 κw/PEA (%) | Session 2 κw/PEA (%) | |
| All joints | 0.95/93 | 0.98/97 | 0.91/88 | 0.96/95 |
| CMC1 | 0.91/90 | 0.91/90 | 0.81/80 | 1.00/100 |
| MCP | 0.98/98 | 0.96/96 | 0.88/90 | 0.95/96 |
| (P)IP | 0.92/90 | 0.99/98 | 0.94/92 | 0.97/96 |
| DIP | 0.95/93 | 0.98/98 | 0.88/83 | 0.95/93 |
CMC, carpometacarpal joint 1; DIP, distal interphalangeal joint 2–5; κw, weighted kappa; MCP, metacarpophalangeal joint 1–5; PEA, percentage exact agreement; (P)IP, (proximal) interphalangeal joint 1–5.