Evolutionary stages | Frequencies | Percentages |
NPDR | 135 | 67.5 |
Minimal | 53 | 26.5 |
Moderate | 54 | 27 |
Severe | 28 | 14 |
PDR | 65 | 32.5 |
incipient | 26 | 13 |
Moderate | 22 | 11 |
Severe | 11 | 5.5 |
Complicated | 06 | 03 |