Table 1. Univariable and multivariable generalized estimating equations analysis.
| Association with yGR | ||||
|---|---|---|---|---|
| Univariable Analysis | Multivariable Analysis | |||
| Coefficient B (standard error) | p value | Coefficient B (standard error) | p value | |
| Age | 0.006 (0.0049) |
0.199 | NA | NA |
| GA area at baseline | 0.003 (0.0064) |
0.645 | NA | NA |
| Distance from fovea | -0.036 (0.0511) |
0.480 | NA | NA |
| FV500 | 0.023 (0.0062) |
<0.001 | 0.006 (0.0085) |
0.510 |
| FV1000 | 0.015 (0.0126) |
0.226 | NA | NA |
| FVOUT | 0.007 (0.0110) |
0.553 | NA | NA |
| ΔFV | 0.044 (0.0089) |
<0.001 | 0.038 (0.012) |
0.001 |
Results of the generalized estimating equations analysis for the association between geographic atrophy (GA) yearly growth rate (yGR) and age, GA area at baseline, distance from the fovea, percentage of flow voids (FV) in the para-atrophy region (FV500), FV in the peri-atrophy region (FV1000), FV outside the GA (FVOUT), and the difference between FV500 and FV1000 (ΔFV). Only the variables with significant association in the univariable analysis (FV500 and ΔFV) were included in the multivariable statistics.