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retinopathy (DR) in patients with type 2 diabetes mellitus.
Methodology: This comparative study recruited one hundred cases from January
to April 2012 from the Department of Endocrinology, Hayatabad Medical
Complex, Peshawar; 50 with DR and 50 without DR. Frequency of Vitamin D
levels was assessed and compared between the groups. The data was analyzed
using SPSS v.17 and to compare the groups, Chi square test was used.
Results: Mean age of the cases with DR was 53.0 ±10.6 years and those without
DR 54.0 ±8.5 years. Significant vitamin D deficiency was demonstrated in diabetics
with any stage of retinopathy as compared to those without retinopathy.
Among cases with non-proliferative retinopathy (NPDR) 41 (82%) had normal
to low levels of vitamin D. In cases with PDR 9(18%) had normal to low levels of
vitamin D levels. P-value was highly significant (p=0.001).
Conclusion: Diabetics with retinopathy were found to have significal vitamin
D deficiency as compared to those without retinopathy. As the DR increased,
levels of vitamin D decreased.
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