Table 4.
Number and proportion of large opacities identified by shape and lung zone for each B reader.
| Lung zone | Reader 1 (n =483) | Reader 2 (n =421) | Reader 3 (n =227) | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rounded (n =244) | Polygonal (n =239) | Rounded (n =197) | Polygonal (n =224) | Rounded (n =159) | Polygonal (n =68) | |||||||
| Right | Left | Right | Left | Right | Left | Right | Left | Right | Left | Right | Left | |
| Upper | 80 (0.17) | 49 (0.10) | 92 (0.19) | 74 (0.15) | 86 (0.20) | 55 (0.13) | 90 (0.20) | 64 (0.15) | 85 (0.37) | 48 (0.21) | 35 (0.15) | 25 (0.11) |
| Middle | 61 (0.13) | 36 (0.07) | 28 (0.06) | 33 (0.07) | 30 (0.07) | 15 (0.04) | 31 (0.10) | 24 (0.06) | 12 (0.05) | 6 (0.03) | 4 (0.02) | 2 (0.01) |
| Lower | 8 (0.02) | 10 (0.02) | 5 (0.01) | 7 (0.01) | 3 (0.01) | 8 (0.02) | 8 (0.01) | 7 (0.02) | 5 (0.02) | 3 (0.01) | 1 (0.00) | 1 (0.00) |
Values in parentheses represent the proportion of the total number of large opacities identified by shape and specific reader.