Table 2.
Intergrader Reliability for the Diagnosis of Optic Disc Edema
| GROUPING 1a KAPPA (95% CI) | GROUPING 2b KAPPA (95% CI) | |
|---|---|---|
| Graders 1 vs. 2 | 0.63 (0.53–0.73) | 0.52 (0.42–0.62) |
| Graders 1 vs. 3 | 0.68 (0.59–0.78) | 0.65 (0.55–0.76) |
| Graders 1 vs. 4 | 0.76 (0.67–0.85) | 0.71 (0.61–0.81) |
| Graders 2 vs. 3 | 0.72 (0.62–0.82) | 0.69 (0.60–0.79) |
| Graders 2 vs. 4 | 0.73 (0.64–0.82) | 0.51 (0.41–0.62) |
| Graders 3 vs. 4 | 0.69 (0.59–0.79) | 0.66 (0.55–0.76) |
a
Presence of optic disc edema was defined as a response of “present,” “likely present,” or “uncertain” versus “likely absent” or “absent.”
b
Presence of optic disc edema was defined as a response of “present,” “likely present,” “uncertain,” “likely absent” versus “absent.”