Fig. 2
From: An investigation of oxidant/antioxidant balance in patients with migraine: a case-control study
a to f. The correlation between serum oxidative and antioxidant biomarkers and headache days per month in a group of chronic migraineurs (n = 27) and episodic migraineurs (n = 44). Pearson correlation test was applied and the correlation coefficients, 95% confidence intervals (CIs) and P-values are reported, CAT, Catalase. SOD, Superoxide dismutase. GPx-1, Glutathione peroxidase-1. TEAC, Trolox equivalent antioxidant capacity. NO, nitric oxide. MDA, malondialdehyde