Reliability of scoring cartilage lesions according to HOAMS (Hip Osteoarthritis MRI Scoring System) subregions (mean weighted kappa and % agreement) for reader pairs (n = 10) in reading exercise 1.
| Mean K (min–max) | % Agreement (min–max) | % Agreement for Grade > 0 (min–max) | |
|---|---|---|---|
| AI | 0.23 (0.10–0.48) | 43.5 (20–80) | 57.7 (35–85) |
| AS | 0.37 (0.17–0.67) | 30.5 (5–55) | 66.0 (50–80) |
| CC | 0.14 (0.03–0.26) | 26.0 (10–45) | 60.0 (40–85) |
| CI | 0.13 (−0.09–0.44) | 29.4 (15–60) | 56.3 (30–75) |
| CL | 0.25 (−0.10–0.56) | 35.0 (10–60) | 59.0 (25–80) |
| CM | 0.09 (−0.12–0.36) | 30.2 (15–79) | 50.4 (30–79) |
| CS | 0.40 (0.21–0.51) | 33.0 (20–50) | 80.0 (65–95) |
| PI | 0.10 (−0.03–0.31) | 22.5 (5–31.6) | 56.8 (25–79) |
| PS | 0.14 (−0.06–0.39) | 32.0 (15–50) | 60.0 (45–75) |
AI: anteroinferior; AS: anterosuperior; CC: central-central; CI: central-inferior; CL: central-lateral; CM: central-medial; CS: central-superior; PI: posteroinferior; PS: posterosuperior; MRI: magnetic resonance imaging.