Table 1.
Readable (R) or unreadable (U) fluid status on paired spectral domain (SD) and time domain (TD) optical coherence tomography.
| Variable | Agree R no. pairs (%) |
Agree U no. pairs (%) |
SD - R TD – U no. pairs (%) |
SD - U TD – R no. pairs (%) |
Total no. pairs |
Exact Agreement % |
P Value* |
|---|---|---|---|---|---|---|---|
| Any Fluid | 1169 (96.4) | 3 (0.2) | 22 (1.8) | 19 (1.6) | 1213 | 96.6 | 0.63 |
| Intraretinal Fluid (cystoid spaces) | 1172 (96.6) | 2 (0.2) | 28 (2.3) | 11 (0.9) | 1213 | 96.8 | 0.006 |
| Intraretinal Fluid, center 1 mm | 469 (97.7) | 2 (0.4) | 6 (1.2) | 3 (0.6) | 480 | 98.1 | 0.32 |
| Intraretinal Fluid, foveal center | 317 (95.4) | 0 (0) | 15 (4.5) | 0 (0) | 332 | 95.4 | -- |
| Subretinal Fluid | 1162 (95.8) | 2 (0.2) | 42 (3.4) | 7 (0.6) | 1213 | 96.0 | < 0.001 |
| Subretinal Fluid, center 1 mm | 361 (97.3) | 1 (0.3) | 9 (2.4) | 0 (0) | 371 | 97.6 | 0.003 |
| Subretinal Fluid, foveal center | 263 (99.2) | 0 (0) | 1 (0.4) | 1 (0.4) | 265 | 99.2 | 1.0 |
| Sub-RPE Fluid | 1105 (91.1) | 18 (1.5) | 55 (4.5) | 35 (2.9) | 1213 | 92.6 | 0.03 |
| Sub-RPE Fluid, center 1 mm | 316 (97.8) | 3 (0.9) | 2 (0.6) | 2 (0.6) | 323 | 98.8 | 1.0 |
| Sub-RPE Fluid, foveal center | 221 (96.5) | 1 (0.4) | 4 (1.7) | 3 (1.3) | 229 | 96.9 | 0.70 |
RPE = retinal pigment epithelium.
*
P Value based on McNemar test for symmetry between paired proportions.