Table 3

Comparison of kappa and weighted kappa coefficients of agreement

DiagnosisKappa (lobe)Weighted kappa (lobe)Weighted kappa (final)
Median values are shown with 25th and 75th percentiles in parentheses.
For definitions of abbreviations see box 1.
UIP0.420.53 (0.41, 0.60)0.59 (0.24, 0.65)
NSIP0.290.35 (0.26, 0.41)0.40 (0.14, 0.45)
OP0.570.68 (0.54, 0.75)0.70 (0.20, 0.75)
EAA0.360.46 (0.35, 0.51)0.47 (0.23, 0.50)
Sarcoidosis0.760.86 (0.78, 0.91)0.75 (0.50, 0.80)
Mean0.480.580.58