Table 2 Inter-observer reproducibility and variation
Inter-observer | Reproducibility | Variation (degrees) | |||
|---|---|---|---|---|---|
ICC | 95% CI | Median (IQR) | Range (min, max) | ||
Observer A | Observer B | 0.797 | 0.683, 0.874 | 0.910 (0.425, 1.561) | 0.013, 4.455 |
Observer C | 0.642 | 0.464, 0.770 | 1.209 (0.644, 2.069) | 0.004, 9.816 | |
Observer D | 0.763 | 0.634, 0.851 | 0.854 (0.463, 1.430) | 0.043, 7.199 | |
Observer E | 0.553 | 0.297, 0.724 | 1.541 (0.563, 2.717) | 0.018, 9.187 | |
Observer F | 0.562 | 0.360, 0.713 | 1.302 (0.573, 2.445) | 0.025, 5.158 | |
Observer B | Observer C | 0.615 | 0.431, 0.750 | 0.920 (0.446, 1.756) | 0.002, 9.828 |
Observer D | 0.730 | 0.585, 0.830 | 1.052 (0.475, 1.632) | 0.026, 5.424 | |
Observer E | 0.538 | 0.317, 0.700 | 1.773 (0.758, 3.253) | 0.016, 6.868 | |
Observer F | 0.410 | 0.179, 0.599 | 1.731 (0.532, 2.844) | 0.007, 6.427 | |
Observer C | Observer D | 0.568 | 0.369, 0.717 | 0.921 (0.519, 1.662) | 0.044, 8.495 |
Observer E | 0.217 | -0.017, 0.435 | 2.371 (1.006, 3.944) | 0.027, 11.466 | |
Observer F | 0.485 | 0.263, 0.657 | 1.402 (0.529, 2.719) | 0.059, 6.910 | |
Observer D | Observer E | 0.574 | 0.353, 0.729 | 1.785 (0.626, 2.661) | 0.013, 6.824 |
Observer F | 0.405 | 0.172, 0.596 | 1.353 (0.373, 2.298) | 0.026, 10.660 | |
Observer E | Observer F | 0.278 | 0.041, 0.490 | 2.078 (0.687, 3.787) | 0.147, 9.961 |