Table 2.
Prevalence and Overall Interreader Agreement of Readings for the Number of Stage 2 or 3 RPD Lesions Present Evaluated on the Entire OCT Volume Scan, or on a Selected B-Scan, among the Cases (n = 100) Evaluated by 12 Readers.
| Presence on OCT Volume Scan |
Presence of Selected OCT B-scan |
|||||
|---|---|---|---|---|---|---|
| Prevalence of Readings (%)∗ | Agreement Rate (%) | Gwet’s AC1 | Prevalence of Readings (%)∗ | Agreement Rate (%) | Gwet’s AC1 | |
| 0 lesions | 18 | 71 | 0.68 | 23 | 41 | 0.30 |
| 1 lesion | 1 | 7 | ||||
| 2 lesions | 1 | 11 | ||||
| 3 lesions | 2 | 15 | ||||
| 4 lesions | 3 | 11 | ||||
| ≥ 5 lesions | 76 | 32 | ||||
AC1 = first-order coefficient; RPD = reticular pseudodrusen.
∗
Proportion of the 1200 readings across 12 readers of the 100 cases considering RPD to be present based on the criteria evaluated.