The intraclass correlation coefficients (ICC) and their 95% confidence interval (CI) between the HRT and Discam measurement of radial cup-disc ratio (RCDR) at different positions by observer A and B
| Observer A | Observer B | |
|---|---|---|
| ICC (95% CI) | ICC (95% CI) | |
| Superotemporal | 0.47 (0.27 to 0.64) | 0.23 (0.01 to 0.44) |
| Inferotemporal | 0.51 (0.24 to 0.70) | 0.22 (−0.0001 to 0.42) |
| Superior | 0.57 (0.39 to 0.71) | 0.33 (0.11 to 0.52) |
| Temporal | 0.36 (−0.05 to 0.63) | 0.12 (−0.07 to 0.32) |
| Inferior | 0.74 (0.61 to 0.83) | 0.45 (0.24 to 0.62) |
| Nasal | 0.52 (0.32 to 0.67) | 0.37 (0.15 to 0.55) |