Table 4.
Baseline Fundus Photographic Measures by Baseline Number of Thickened Subfields (N = 317 eyes*)
| Baseline Number of Thickened Subfields |
r | |||||
|---|---|---|---|---|---|---|
| N | 0–2 N = 91 | 3–4 N = 68 | 5–6 N = 64 | 7–9 N = 94 | ||
| Retinal Thickening at Centera | 0.45 | |||||
| None | 69 | 36 (40%) | 20 (30%) | 7 (11%) | 6 (7%) | |
| Questionable | 34 | 17 (19%) | 5 (7%) | 8 (13%) | 4 (4%) | |
| Definite, <1X | 44 | 12 (13%) | 9 (13%) | 16 (25%) | 7 (8%) | |
| Definite, <2X | 150 | 24 (27%) | 32 (48%) | 30 (48%) | 64 (71%) | |
| Definite, ≥2X | 12 | 0 | 1 (1%) | 2 (3%) | 9 (10%) | |
| Retinal Thickening Areaa | Disc Area - median (25th, 75th percentiles) | |||||
| Inner Zoneb | 309 | 0.72 (0.25, 1.34) | 1.24 (0.44, 2.30) | 1.93 (1.24, 2.72) | 3.14 (1.87, 4.00) | 0.61 |
| Within the Gridc | 309 | 1.34 (0.72, 3.11) | 2.80 (1.54, 4.41) | 5.30 (2.90, 6.56) | 6.62 (4.56, 10.18) | 0.63 |
*
Excludes 6 eyes with all nine OCT zones ungradable at baseline.
a
Missing for 8 eyes (photo lost for 1 eye, not graded for 2 eyes, and ungradable for 5 eyes).
b
within 1800 μ of the center of the macula
c
within 3600 μ of the center of the macula