Table 1.
Intraclass correlation coefficient at each institution
| JSSF scale | JOA scale | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Institute | No. of patients | No. of clinicians | ICC | P | Institute | No. of patients | No. of clinicians | ICC | P |
| Ankle-hindfoot | |||||||||
| A | 6 | 4 | 0.7246 (0.37882-0.9472) | 0.03 | A | 5 | 5 | 0.8721 (0.642-0.98) | 0.0004 |
| B | 3 | 4 | 0.8526 (0.452-1.0) | 0.016 | B | 3 | 4 | 0.4647 (−0.052-0.98) | 0.3406 |
| C | 3 | 3 | 0.9318 (0.52842-0.9982) | 0.015 | C | 2 | 4 | 0.3018 (−0.312-1.0) | 0.4241 |
| D | 3 | 2 | 0.2753 (−1.52-0.98) | 0.5508 | |||||
| E | 2 | 4 | −0.6691 (−0.72482-0.6935) | 0.9009 | |||||
| Midfoot | |||||||||
| C | 2 | 3 | 0.6975 (−0.152-1.0) | 0.1896 | C | 2 | 3 | 0.9162 (0.32-1.0) | 0.0467 |
| E | 2 | 2 | 0.8324 (−0.022-1.0) | 0.1984 | |||||
| Hallux | |||||||||
| A | 6 | 6 | 0.5429 (0.212-0.89) | 0.1862 | A | 6 | 6 | 0.5840 (0.26582-0.9050) | 0.1235 |
| C | 2 | 2 | 0.0 (−1.02-1.0) | 0.5904 | C | 2 | 3 | −0.5676 (−0.61522-0.3498) | 0.9011 |
| D | 7 | 2 | 0.971 (0.842-1.0) | 0.0004 | |||||
| Lesser toe | |||||||||
| A | 2 | 6 | 0.7298 (0.222-1.0) | 0.0861 | A | 2 | 6 | 0.8586 (0.432-1.0) | 0.0187 |
| C | 2 | 3 | 0.569 (−0.182-1.0) | 0.2666 | C | 2 | 3 | 0.9461 (0.532-1.0) | 0.0133 |
| D | 4 | 2 | 0.441 (−0.852-0.95) | 0.4583 | |||||
| RA | |||||||||
| A | 2 | 4 | 0.08 (−0.0142-0.99) | 0.7107 | A | 2 | 4 | 0.3099 (−0.192-1.0) | 0.4188 |
| B | 2 | 6 | 0.4162 (−0.042-1.0) | 0.3289 | B | 2 | 6 | 0.3513 (0.00472-1.0) | 0.3853 |
JSSF, Japanese Society of Surgery of the Foot; JOA, Japanese Orthopaedic Association; ICC, intraclass correlation coefficient; RA, rheumatoid arthritis
Boldface type indicates that ICC > 0.4 (P < 0.05)