The results of analysis of covariance to investigate the statistical significance of the trial primary outcome measures
| Model 1 | Model 2 | |||
|---|---|---|---|---|
| Coefficient | p Value | Coefficient | p Value | |
| Model 1: adjusted for baseline differences in acuity and central macular thickness only. | ||||
| Model 2: adjusted for baseline differences in acuity, central macular thickness, insulin use, duration of diabetes, and glycosylated haemoglobin. Model 2 for ETDRS logMAR visual acuity was additionally adjusted for cataract progression. | ||||
| ETDRS logMAR VA | 0.099 | 0.277 | 0.265 | 0.123 |
| OCT central macular thickness | −20.178 | 0.746 | −7.289 | 0.919 |