Table 3.
Characteristics of Eyes in the Nonperfusion and Perfusion Groups
| Variables | Nonperfusion Group (82 Eyes) | Perfusion Group (28 Eyes) | P Value |
|---|---|---|---|
| Age (years) | 60 (49 to 72) | 63 (56 to 69) | 0.299 |
| Gender (male/female) | 61/21 | 13/15 | 0.010 |
| Hemoglobin A1c (%) | 7.7 (6.8 to 8.4) | 7.2 (6.9 to 8.0) | 0.901 |
| Duration of diabetes (years) | 16 (10 to 22) | 17 (8 to 25) | 0.857 |
| Systemic hypertension | 49 | 12 | 0.130 |
| Dyslipidemia | 40 | 12 | 0.664 |
| LogMAR | 0.000 (−0.079 to 0.097) | −0.079 (−0.176 to 0.011) | <0.001 |
| Phakia/pseudophakia | 42/40 | 21/7 | 0.045 |
| International DR severity scale | |||
| Mild NPDR | 4 | 5 | |
| Moderate NPDR | 26 | 15 | |
| Severe NPDR | 9 | 3 | |
| PDR | 43 | 5 | 0.005 |
| FAZ | |||
| Area (10−3 mm2) | 805 (611 to 1196) | 567 (386 to 737) | <0.001 |
| Minimum diameter (10−1 mm) | 12.01 (9.63 to 14.46) | 8.76 (6.96 to 10.09) | <0.001 |
| Maximum diameter (10−1 mm) | 16.38 (14.40 to 19.06) | 11.43 (9.31 to 12.44) | <0.001 |
| Perimeter (10−1 mm) | 186.5 (119.5 to 237.2) | 94.2 (54.2 to 122.7) | <0.001 |
| Intercapillary spaces | |||
| Total counts | 138 (96 to 179) | 297 (268 to 378) | <0.001 |
| Mean area (10−3mm2) | 7.15 (5.96 to 9.00) | 3.23 (2.60 to 3.76) | <0.001 |
| Mean minimum diameter (10−1 mm) | 0.613 (0.565 to 0.687) | 0.433 (0.398 to 0.470) | <0.001 |
| Mean maximum diameter (10−1 mm) | 1.213 (1.063 to 1.361) | 0.878 (0.787 to 0.952) | <0.001 |
| Mean perimeter (10−1 mm) | 4.24 (3.63 to 5.10) | 2.57 (2.29 to 3.02) | <0.001 |
| Prior panretinal photocoagulation | 42 | 4 | <0.001 |
Values are median (interquartile range) or number.