| Groups | Age | |
| Mean ± SD | Range | |
| Diabetic nephropathy stage 1, 2 | 52.00 ± 15.18 | 23 - 70 |
| Diabetic nephropathy stage 3, 4 | 58.22 ± 11.52 | 35 - 74 |
| Diabetic patients only | 40.44 ± 18.90 | 0 - 60 |
| Chronic kidney disease stage 1, 2 | 42.88 ± 13.23 | 23 - 60 |
| Chronic kidney disease stage 3, 4 | 47.33 ± 15.94 | 27 - 75 |
| One Way ANOVA test | F = 1.955 | |
| P-value = 0.121 | ||