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Serum magnesium and severity of retinopathy.
| Grade of retinopathy | Number of patients (n) | Serum magnesium (mg/dL) Mean ± SD |
95% confidence interval for mean | p value | |
|---|---|---|---|---|---|
| Lower | Upper | ||||
| Mild NPDR | 24 | 1.68 ± 0.35 | 1.53 | 1.83 | 0.729 |
| Moderate NPDR | 13 | 1.65 ± 0.43 | 1.39 | 1.90 | |
| Severe NPDR | 7 | 1.56 ± 0.30 | 1.28 | 1.83 | |
| PDR | 6 | 1.52 ± 0.37 | 1.13 | 1.90 | |
NPDR, non-proliferative diabetic retinopathy; PDR, proliferative diabetic retinopathy; SD, standard deviation.
