Vitamin D status | NSC grading of diabetic retinopathy | P value | |||||||
R0M0 | R1M0 | R1M1 | R2M1 | ||||||
n | % | n | % | n | % | n | % | ||
Deficiency (<20 ng/ml) | 16 | 53 | 13 | 76 | 11 | 100 | 2 | 100 |
|
Normal (20 - 50 ng/ml) | 14 | 47 | 4 | 24 | 0 | 0 | 0 | 0 |
|
Mean ± SD | 20.15 ± 5.06 | 19.61 ± 3.49 | 14.83 ± 1.11 | 12.45 ± 0.49 | 0.001 | ||||
Range (min-max) | 12.10 - 28.40 | 16.10 - 27.0 | 12.9 - 16.30 | 12.10 - 12.80 |