Location, extent and thickness at the centre point of cystoid spaces
| Location and extent | ||||
| VRC | ||||
| UW-FPRC | 0 | 1 | 2 | Total |
| 0 | 65 | 0 | 0 | 73% |
| 1 | 2 | 3 | 0 | 5% |
| 2 | 6 | 2 | 22 | 30% |
| Total | 73% | 5% | 12% | 100% |
| 0—Absent | κ | 0.78 | ||
| 1—Definite, outside central 1 mm | SE | 0.07 | ||
| 2—Definite, central 1 mm involved | 95% CI | 0.53 to 0.82 | ||
| Thickness at the centre point | |||||
| VRC | |||||
| UW-FPRC | 0 | 1 | 2 | 3 | Total |
| 0 | 83 | 2 | 1 | 0 | 86% |
| 1 | 0 | 7 | 3 | 0 | 10% |
| 2 | 0 | 0 | 2 | 1 | 3% |
| 3 | 0 | 0 | 0 | 1 | 1% |
| Total | 83% | 9% | 6% | 2% | 100% |
| 0—Not applicable | κ | 0.75 | |||
| 1—Small, <200 μm | SE | 0.09 | |||
| 2—Medium, ≤400 μm | 95% CI | 0.56 to 0.93 | |||
| 3—Large, >400 μm | |||||
Values in bold indicate consistent gradings. UW-FPRC, University of Wisconsin-Madison Reading Center; VRC, Vienna Reading Center.