Table 1.
Patient Characteristics
| Parameter | Number of Subjects | % |
|---|---|---|
| Race | ||
| African American | 137 | 54 |
| Caucasian | 95 | 38 |
| Native American | 11 | 4 |
| No answer | 6 | 2 |
| Other | 2 | 1 |
| Asian | 1 | 0.4 |
| Ethnicity | ||
| Hispanic | 8 | 3 |
| Sex | ||
| Male | 213 | 85 |
| Female | 39 | 15 |
| Diabetes medication | ||
| Oral | 71 | 28 |
| Injection | 92 | 37 |
| Both | 89 | 35 |
| Edema | ||
| None | 167 | 66 |
| CSME | 50 | 20 |
| Macular edema | 21 | 8 |
| Ungradable | 14 | 6 |
| International clinical classification2 (ETDRS level) | ||
| No DR (10) | 38 | 15 |
| Mild NPDR (14) | 1 | 0.4 |
| Mild NPDR (15) | 11 | 4 |
| Mild NPDR (20) | 9 | 4 |
| Mild NPDR (35) | 47 | 19 |
| Moderate NPDR (43) | 41 | 16 |
| Moderate NPDR (47) | 35 | 14 |
| Severe NPDR (53) | 8 | 3 |
| Proliferative DR (61) | 13 | 5 |
| Proliferative DR (65) | 8 | 3 |
| Proliferative DR (71) | 2 | 1 |
| Proliferative DR (85) | 1 | 0.4 |
| Ungradable | 38 | 15 |