Table 1.
Mean deviation for each observer from manual grading (graders JC and RTS from Columbia University, USA and graders VS and BL from Kings College Hospital, UK)
| Observer | Central subfield |
Middle subfield |
||||
|---|---|---|---|---|---|---|
| Disagreement in relation to stereo grading (observer manual) | 95% CI | p Value (two sided) | Disagreement in relation to stereo grading (observer manual) | 95% CI | p Value (two sided) | |
| JC | 6.3 | −4.7 to 17 | 0.23 | −4.6 | −10.7 to 1.5 | 0.12 |
| RTS | 5.2 | −6.9 to 17 | 0.36 | −7.5 | −12.7 to −2.4 | 0.01 |
| BL | 8.5 | −8 to 25 | 0.27 | −4.1 | −13.7 to 5.6 | 0.36 |
| VS | 6.8 | (−9 to 23) | 0.37 | −1.3 | −10.3 to 7.6 | 0.73 |