Table 2

Weighted kappa measurements indicating variation in visual scores of disease change on CT between the pairs of radiologist scorers

Visual CT variableCohort 1Cohort 2
ILD change0.870.87
Ground-glass opacity change0.790.65
Reticular pattern change0.830.80
Honeycombing change0.640.70
Traction bronchiectasis change0.810.66

  • Separate pairs of scorers evaluated CTs of patients with idiopathic pulmonary fibrosis in each cohort.

  • ILD, interstitial lung disease.