Skip to main content

Table 4 Analysis of inter-reader agreement percent of concordance and kappa of agreement

From: CT features associated with EGFR mutations and ALK positivity in patients with multiple primary lung adenocarcinomas

CT features N(% of concordance) Kappa(95%CI) Kappa interpretation
Shape 125/135 0.846(0.742–0.933) Almost perfect
Type 131/135 0.950(0.797–0.978) Almost perfect
Texture 127/135 0.860(0.749–0.948) Almost perfect
Bubblelike lucency 128/135 0.861(0.754–0.956) Almost perfect
Margins 121/135 0.759(0.632–0.871) Almost perfect
Vascular convergence 124/135 0.813(0.698–0.916) Almost perfect
Air bronchogram 124/135 0.820(0.703–0.921) Almost perfect
Pleural retraction 133/135 0.969(0.922–1.00) Almost perfect
Spiculate 130/135 0.923(0.847–0.984) Almost perfect
Calcifications 128/135 0.640(0.335–0.881) Substantial
Enhancement degree 89/105 0.634(0.447–0.783) Substantial
Lymphadenopathy 130/135 0.881(0.766–0.976) Almost perfect
Cavitation 132/135 0.758(0.393–1.00) Almost perfect
Heterogeneity 126/135 0.838(0.731–0.924) Almost perfect
Peripheral fibrosis 127/135 0.881(0.794 ~ 0.956) Almost perfect
Peripheral emphysema 121/135 0.740(0.605 ~ 0.858) Substantial
Necrosis 122/135 0.789(0.674–0.893) Almost perfect