Parameter | Volume at baseline | Volume at year 1 | Change in volume at year 1 |
---|---|---|---|
Reader 1, median (IQR) | 0.59 cm3 (0.14 to 2.3) | 0.60 cm3 (0.21 to 2.2) | 0.00 cm3 (-0.44 to 0.48) |
Reader 1, mean (SD) | 2.9 cm3 (7.1) | 2.3 cm3 (5.2) | -0.58 cm3 (2.6) |
Reader 2, median (IQR) | 0.42 cm3 (0.13 to 2.1) | 0.29 cm3 (0.12 to 1.8) | -0.03 cm3 (-0.37 to 0.07) |
Reader 2, mean (SD) | 2.8 cm3 (6.9) | 2.1 cm3 (5.2) | -0.68 cm3 (2.5) |
Average (reader 1 and reader 2), median (IQR) | 0.49 cm3 (0.16 to 2.2) | 0.51 cm3 (0.18 to 2.1) | -0.01 cm3 (-0.40 to 0.28) |
Interreader intraclass correlation coefficient (95% CI) | 1.0 (0.99 to 1.0) | 0.99 (0.99 to 1.0) | 0.93 (0.89 to 0.96) |
Interreader bias (SD) | -0.18 cm3 (0.63) | -0.27 cm3 (0.62) | -0.10 cm3 (0.93) |
Smallest detectable difference, average measurement (%) | 44.1% | 55.2% | 289% |
Smallest detectable change | – | – | 0.91 cm3 |