Table 1 Agreement for ordinal variables was examined using the weighted kappa coefficient. The agreement coefficients are interpreted as follows
From: Contrast-enhanced spectral mammography: successful initial clinical institute experience
Coefficient of agreement | Strength of agreement |
|---|---|
0.0–0.20 | Slight agreement |
0.21–0.40 | Fair agreement |
0.41–0.60 | Moderate agreement |
0.61–0.80 | Substantial agreement |
0.81–1.0 | Nearly perfect agreement |