Table 5:
Intraclass correlation coefficient (ICC) by time point for assessing interreader reliability of the focal lesion DWI ADC.
| Timepoint | ICC (95% CI) a,b |
|---|---|
| V1 | 0.89 (0.65, 0.97) |
| V2pre | 0.76 (0.28, 0.94) |
| V2post | 0.94 (0.79, 0.98) |
a
ICC corresponds to ICC(2,1) in the nomenclature of Shrout and Fleiss, based on a single measurement, absolute agreement, two-way random effects model.
b
Koo and Li give the following guidelines for interpreting the ICC:
Below 0.50: poor reliability
Between 0.50 and 0.75: moderate reliability
Between 0.75 and 0.90: good reliability
Above 0.90: excellent reliability