Table 2. Result of Optical Coherence Tomographic Angiography Analysis in Participants by Diabetes and DR Status.
| Parameter | Value, Mean (SD) | ||||
|---|---|---|---|---|---|
| Control Participants | Participants With Diabetes and No DR | Participants With Nonproliferative DR | |||
| All | Mild | Moderate to Severe | |||
| Wide Field (12 × 12 mm2) | |||||
| Total perfusion density | 85.91 (3.84) | 86.71 (7.52) | 68.48 (11.15) | 76.18 (9.48) | 61.62 (7.42) |
| Capillary perfusion density | 70.67 (3.67) | 71.33 (8.42) | 51.51 (11.37) | 59.90 (8.82) | 44.01 (7.48) |
| Large vessel density | 15.20 (1.00) | 15.34 (1.51) | 16.94 (1.75) | 16.24 (1.55) | 17.56 (1.69) |
| Capillary dropout density | 0.42 (0.51) | 1.51 (2.59) | 11.21 (8.39) | 5.65 (6.13) | 16.17 (6.89) |
| Central (6 × 6 mm2) | |||||
| Total perfusion density | 93.01 (3.33) | 92.67 (5.14) | 80.59 (9.12) | 86.30 (7.70) | 75.49 (7.03) |
| Capillary perfusion density | 78.39 (3.51) | 77.88 (5.89) | 63.86 (9.48) | 70.69 (6.97) | 57.76 (6.93) |
| Large vessel density | 14.62 (1.44) | 14.80 (1.49) | 16.73 (2.11) | 15.61 (1.56) | 17.73 (2.03) |
| Capillary dropout density | 0.06 (0.22) | 0.16 (0.37) | 2.12 (2.62) | 0.91 (1.58) | 3.21 (2.87) |
| Square Annulus | |||||
| Total perfusion density | 83.52 (4.34) | 84.70 (8.39) | 64.39 (12.22) | 72.73 (10.27) | 56.94 (8.41) |
| Capillary perfusion density | 68.07 (4.09) | 69.12 (9.31) | 47.32 (12.30) | 56.23 (9.57) | 39.37 (8.41) |
| Large vessel density | 15.39 (0.96) | 15.52 (1.66) | 17.01 (1.78) | 16.45 (1.72) | 17.51 (1.67) |
| Capillary dropout density | 0.54 (0.67) | 1.96 (3.37) | 14.24 (10.66) | 7.23 (7.78) | 20.50 (8.84) |
Abbreviation: DR, diabetic retinopathy.