Pearson's correlation showed that serum magnesium correlated negatively to both FBS (r = −0.527, P < 0.01) and HbA 1C (r = −0.48, P < 0.01) and it was highly significant in cases with diabetic retinopathy, Figures 1 and 2 .
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Pearson's correlation showed that serum magnesium correlated negatively to both FBS (r = −0.527, P < 0.01) and HbA 1C (r = −0.48, P < 0.01) and it was highly significant in cases with diabetic retinopathy, Figures 1 and 2 .