Baseline characteristics at the time of registration
| VIT group* (n=42) | VIT+IVTA group† (n=42) | P value | |
| Age (years) | 67.3±8.2 | 66.9±8.5 | 0.44* |
| Gender (male/female) | 22/20 | 23/19 | 0.61† |
| Duration of DM (years) | 11.3±1.3 | 12.1±1.5 | 0.26* |
| Haemoglobin A1c (%) | 7.4±0.4 | 7.3±0.3 | 0.54* |
| Insulin therapy | 23 (54.8%) | 21 (50.0%) | 0.66† |
| Serum creatinine | 2.34±0.47 | 2.28±0.52 | 0.42* |
| Left eye:right eye | 20:22 | 23:19 | 0.51† |
*Mann-Whitney U test.
†χ2 test.
DM, diabetes mellitus; IVTA, intravitreal injection of triamcinolone acetonide; VIT, vitrectomy treatment.