Number of nodules assessed | 380 | 20 | 180 | 463 | 189 | 100 | 108 | (40 80 + 40) | 100 |
Number of researchers | 3 | 5 | 4 | 3 | 2 | 7 | 2 | 4 | 15 |
Statistics | Fleiss’ κ | Cohen’s κ | Cohen’s κ | Randolph’s κ | Cohen’s κ | Cohen’s κ | Cohen’s κ | Fleiss’ κ | Fleiss’ κ |
Feature on ultrasound examination: | | | | | | | | | |
structure | 0.636 | 0.55 | 0.43 | 0.66 | 0.10–0.643 | 0.53 | 0.616 | S1: 0.476 S2: 0.674 | 0.39 |
echogenicity | 0.750 | 0.48–0.501 | 0.252 | 0.35 | 0.24–0.534 | 0.47 | 0.327 | S1: 0.440 S2: 0.622 | 0.39 |
shape | 0.868 | – | 0.30 | – | 0.28 | 0.47 | – | S1: 0.537 S2: 0.676 | 0.38 |
margins | 0.524 | 0.39 | 0.23 | 0.50 | 0.07–0.145 | 0.33 | 0.143 | S1: 0.431 S2: 0.796 | 0.18 |
halo | –2 | 0.41 | – | – | 0.50 | – | – | – | – |
hyperechogenic foci | 0.598 | – | – | 0.77 | – | – | 0.288 | – | – |
microcalcifications | 0.957 | 0.57 | 0.27 | – | 0.39 | 0.47 | – | – | 0.28 |
macrocalcifications | 0.974 | 0.61 | 0.49 | – | – | 0.38 | – | – | 0.41 |
peripheral calcifications | 0.604 | – | 0.39 | – | 0.33 | 0.65 | – | – | 0.26 |
total calcifications | – | – | 0.38 | – | – | – | – | S1: 0.405 S2: 0.424 | – |
comet tail | 0.885 | – | 0.06 | – | – | 0.11 | – | – | 0.08 |
vascularisation | 0.211 | 0.34 | – | – | – | 0.46 | – | – | – |
extra-thyroidal infiltration | 1.000 | 0.40 | – | 0.82 | 0.24 | – | – | – | – |