Table 3.
Subgroup analysis within MacTel severity 3.
Variable | Inner retinal cavity | Clustered HF at foveola | |||||
---|---|---|---|---|---|---|---|
Only IR cavity | With other findings | P value* | Present | Absent | P value* | ||
(N = 50) | (N = 61) | (N = 19) | (N = 31) | ||||
LogMAR VA | Mean (SE)a | 0.187 (0.030) | 0.308 (0.031) | 0.005 | 0.106 (0.030) | 0.229 (0.033) | 0.006 |
Nb | 50 | 61 | 19 | 31 | |||
FP scorec | Mean (SE) | 1.06 (0.17) | 1.61 (0.22) | 0.034 | 0.68 (0.17) | 1.07 (0.21) | 0.154 |
N | 49 | 58 | 19 | 30 | |||
CBR scorec | Mean (SE) | 2.55 (0.63) | 3.67 (0.353) | 0.012 | 1.25 (0.18) | 3.50 (0.35) | < 0.001 |
N | 6 | 13 | 3 | 3 | |||
FAF scorec | Mean (SE) | 1.61 (0.24) | 2.27 (0.24) | 0.039 | 1.06 (0.22) | 1.74 (0.29) | 0.062 |
N | 41 | 48 | 18 | 23 | |||
Early FAG scorec | Mean (SE) | 1.63 (0.23) | 2.34 (0.17) | 0.010 | 1.43 (0.268) | 1.83 (0.297) | 0.322 |
N | 44 | 56 | 15 | 27 | |||
Late FAG scorec | Mean (SE) | 1.85 (0.22) | 2.67 (0.20) | 0.003 | 1.44 (0.32) | 1.98 (0.32) | 0.198 |
N | 44 | 56 | 15 | 27 |
CBR confocal blue light reflectance, FAF fundus autofluorescence, FAG fluorescein angiography, FP fundus photo, HF hyperreflective foci, SE standard error, VA visual acuity.
*P values are by generalized linear models and the generalized estimation equation method to account for correlation between eyes.
aData are expressed as estimated marginal mean (standard errors). Each estimated mean was shown to account for correlation between eyes using generalized linear models and the generalized estimation equation method.
bThe number of eyes that had gradable images for analysis. Some images are missing or ungradable for each image modality and expressed the number of eyes that included for analysis.
cThe score was the sum of the affected ETDRS subfields of each image modality.