Table 1. Demographic and baseline data in the vitrectomy group and the control group.
| Vitrectomy group (n = 21) | Control group (n = 19) | P value | |
|---|---|---|---|
| Age (year) | 60.1 ± 7.9 | 56.8 ± 7.2 | 0.19 |
| Male (%) | 67% | 74% | 0.64 |
| Follow-up duration (month) | 21.4 ± 8.7 | 18.8 ± 7.8 | 0.3 |
| Baseline LogMAR | 1.65 ± 0.38 | 1.46 ± 0.34 | 0.09 |
| Baseline CRT (μm) | 481 ± 196 | 491 ± 133 | 0.85 |
| Baseline hard exudate area (disc area) | 4.1 ± 2.1 | 4.2 ± 1.4 | 0.84 |
| DM duration (year) | 11.7 ± 6.9 | 10.7 ± 7.9 | 0.73 |
| PDR (%) | 71% | 78% | 0.58 |
| HTN (%) | 76% | 63% | 0.37 |
| Dyslipidemia (%) | 10% | 15% | 0.57 |
| CKD (%) | 19% | 31% | 0.36 |
| Anemia (%) | 24% | 36% | 0.37 |
CKD, chronic kidney disease; CRT, central macular thickness; DM, diabetes mellitus; HTN, hypertension; LogMAR, logarithm of the minimal angle of resolution; PDR, proliferative diabetic retinopathy; PPV, pars plana vitrectomy; SD, standard deviation.