Intrareader and inter-reader agreement on tenosynovitis for baseline and 6-week status and change in score of the two methods for scoring tenosynovitis (two-way random effect model, single measure ICCs, average measures ICCs, SDD and MDC)
| Method | ICC | Measure | Baseline | 6 Week | Change |
|---|---|---|---|---|---|
| Current study | ICC intrareader | Reader 1 | |||
| SmICC | 0.95 (0.86 to 0.98) | 0.92 (0.80 to 0.97) | 0.78 (0.48 to 0.92) | ||
| AvmICC | 0.97 (0.92 to 0.99) | 0.96 (0.89 to 0.98) | 0.88 (0.65 to 0.95) | ||
| SDD | 3.09 | 3.29 | 3.39 | ||
| MDC (%) | 11.9 | 12.7 | 13.01 | ||
| Reader 2 | |||||
| SmICC | 0.98 (0.94 to 0.99) | 0.93 (0.81 to 0.97) | 0.94 (0.84 to 0.98) | ||
| AvmICC | 0.99 (0.97 to 0.99) | 0.96 (0.89 to 0.98) | 0.97 (0.91 to 0.99) | ||
| SDD | 2.16 | 2.2 | 2.28 | ||
| MDC (%) | 8.3 | 8.5 | 8.8 | ||
| ICC inter-reader | SmICC | 0.91 (0.74 to 0.96) | 0.80 (0.33 to 0.93) | 0.62 (0.20 to 0.85) | |
| Haavardsholm et al5 | ICC intrareader | AvmICC Reader 1 | 0.95 (0.85 to 0.98) | 0.89 (0.48 to 0.96) | 0.76 (0.33 to 0.92) |
| SmICC | 0.93 (0.83 to 0.97) | 0.93 (0.83 to 0.97) | 0.72 (0.37 to 0.89) | ||
| AvmICC | 0.96 (0.90 to 0.98) | 0.96 (0.90 to 0.98) | 0.84 (0.54 to 0.94) | ||
| SDD | 2.07 | 2.40 | 2.76 | ||
| MDC (%) | 6.9 | 7.9 | 9.2 | ||
| Reader 2 | |||||
| SmICC | 0.97 (0.92 to 0.99) | 0.81 (0.55 to 0.93) | 0.87 (0.66 to 0.95) | ||
| AvmICC | 0.98 (0.96 to 0.99) | 0.90 (0.71 to 0.96) | 0.93 (0.80 to 0.97) | ||
| SDD | 1.38 | 2.45 | 2.50 | ||
| MDC (%) | 4.6 | 8.2 | 8.4 | ||
| ICC inter-reader | SmICC | 0.59 (0 to 0.87) | 0.51 (0 to 0.80) | 0.68 (0.29 to 0.88) | |
| AvmICC | 0.74 (0 to 0.93) | 0.67 (0 to 0.89) | 0.81 (0.45 to 0.93) |
Values are mean (95% CI).
AvmICC, average measure intraclass correlation coefficient; ICC, intraclass correlation coefficient; MDC, minimal detectable change;
SDD, smallest detectable difference; SmICC, single measure intraclass correlation coefficient.