Table 1.
Patient Characteristics
| PDR (n = 20) | Control (n = 17) | P | |
|---|---|---|---|
| Age, y | <0.0001a | ||
| Mean ± SD (range) | 50.56 ± 10.08 (26–77) | 65.77 ± 7.50 (53–78) | |
| Median (IQR) | 51.27 (46.6–55.5) | 64.42 (59.5–71.6) | |
| Sex, n | 0.008b | ||
| Female | 4 | 11 | |
| Male | 16 | 6 | |
| Lens status, n | 0.069b | ||
| Phakic | 17 | 9 | |
| Pseudophakic | 3 | 8 | |
| Indication for vitrectomy, n | N/A | ||
| ERM | — | 8 | |
| Macular hole | — | 4 | |
| VMA | — | 1 | |
| Vitreous floaters | — | 4 | |
| VH | 9 | — | |
| TRD | 7 | — | |
| TRD + VH | 3 | — | |
| NVI | 1 | — | |
| Hemoglobin A1c, % | N/A | ||
| Mean ± SD (range) | 8.2 ± 2.2 (5.4–12) | — | |
| Median (IQR) | 8.0 (6.1–10) | — | |
| Recent intravitreal injection (within 90 days), n | 8c | — | — |
| History of PRP, n | 11 | — | — |
SD, standard deviation; IQR, interquartile range; ERM, epiretinal membrane; VMA, vitreomacular adhesion; VH, vitreous hemorrhage; TRD, traction retinal detachment; NVI, neovascularization of the iris; PRP, panretinal photocoagulation.
a
Student's t-test.
b
Fisher's exact test.
c
Recent intravitreal injections included anti-VEGF medications in seven eyes and triamcinolone acetonide in one eye.