Table 1.
Baseline participant characteristics among eyes with gradable UWF-FA images and color photographs
| Participant Characteristics | ||
|---|---|---|
| (N = 361 participants) | ||
| Female, N (%) | 183 | (50.7) |
| Age (yr.), Median (IQR) | 62 | (53, 69) |
| Race/Ethnicity, N (%) | ||
| White | 242 | (67.0) |
| Black/African American | 68 | (18.8) |
| Hispanic or Latino | 33 | (9.1) |
| Asian | 10 | (2.8) |
| Native Hawaiian/Other Pacific Islander | 1 | (0.3) |
| More than one race | 3 | (0.8) |
| Unknown/not reported | 4 | (1.1) |
| Diabetes type, N (%) | ||
| Type 1 | 49 | (13.6) |
| Type 2 | 307 | (85.0) |
| Uncertain | 5 | (1.4) |
| Duration of diabetes (yr.), Median (IQR) | 20 | (13, 28) |
| HbA1c (%), Median (IQR) * | 7.9 | (7.0, 9.0) |
| Mean arterial pressure (mmHg), Median (IQR) | 97 | (90, 106) |
| Bilateral participant, N (%) | 186 | (51.5) |
| Ocular Characteristics | ||
| (N = 652 eyes) | ||
| Study eyes, N (%) | 529 | (81.1) |
| Visual acuity (letter score), Median (IQR) | 85 | (81, 89) |
| ~Snellen equivalent, Median (IQR) | 20/20 | (20/25, 20/16) |
| DR severity assessed within the ETDRS 7-fields on UWF-color, N (%) | ||
| DR Absent (Level 10/12) | 3 | (0.5) |
| DR Questionable or Microaneurysms Only (Level 14/15/20) | 4 | (0.6) |
| Mild NPDR (Level 35) | 200 | (30.7) |
| Moderate NPDR (Level 43) | 157 | (24.1) |
| Moderately Severe NPDR (Level 47) | 91 | (14.0) |
| Severe and Very Severe NPDR (Level 53) | 167 | (25.6) |
| Inactive PDR or Mild PDR (Level 60/61) | 12 | (1.8) |
| Moderate PDR (Level 65) | 12 | (1.8) |
| High-risk PDR (Level 71/75) | 6 | (0.9) |
| DME severity based on UWF-color, N (%) | ||
| No DME | 401 | (61.5) |
| Questionable DME | 4 | (0.6) |
| Less than clinically significant macular edema | 175 | (26.8) |
| Clinically significant macular edema | 61 | (9.4) |
| Ungradable | 11 | (1.7) |
| OCT central subfield thickness (Stratus equivalent, μm), Median (IQR)† | 213 | (195, 234) |
| Phakic lens status on clinical examination, N (%) | 479 | (73.5) |
*
HbA1c unavailable for 6 participants
†
Central subfield thickness unavailable for 1 eye
IQR, interquartile range; DR, diabetic retinopathy; ETDRS, Early Treatment Diabetic Retinopathy Study; UWF, ultrawide field; NPDR, non-proliferative diabetic retinopathy; PDR, proliferative diabetic retinopathy; DME, diabetic macular edema; OCT, optical coherence tomography.