Table 2.
Level of Agreement and Complete Concordance among the Three Radiologists Regarding Interpretation of Chest Radiographic Findings
| κ Statistic (Interobserver Agreement)* |
Complete Concordance | |||
|---|---|---|---|---|
| #1 vs. #2 | #1 vs. #3 | #2 vs. #3 | ||
| Normality | 0.62 | 0.62 | 0.69 | 91% |
| Laterality | 0.85 | 0.87 | 0.88 | 85% |
| Zonal involvement >2 | 0.61 | 0.63 | 0.72 | 90% |
| Location of lesion | 0.44 | 0.49 | 0.66 | 48% |
| Consolidation | 0.59 | 0.48 | 0.48 | 87% |
| Ground-glass opacity | 0.29 | 0.14 | 0.37 | 75% |
*
Level of agreement: 0.93 to 1 = excellent; 0.81 to 0.92 = very good; 0.61 to 0.8 = good; 0.41 to 0.6 = fair; 0.21 to 0.4 = slight; 0.01 to 0.2 = poor.