Serum vitamin C level (mg/dL) | Cases (n = 40) | Controls (n = 20) | P |
Range | 0.28 - 0.75 | 0.60 - 2.90 | <0.001 |
Mean ± SD | 0.47 ± 0.14 | 1.87 ± 0.61 | |
Median | 0.46 | 1.90 |