From:  Redox-oxidative stress and micronutrients interplay in the clinical phenotype of schizophrenia in Nigerian subjects

 Pearson correlation of biochemical parameters with positive, negative, and general symptoms in the schizophrenia population.

Biochemical variablePositive symptomsNegative symptomsGeneral symptoms
MDAr = –0.095, p = 0.417r = 0.054, p = 0.648r = 0.033, p = 0.77
Zincr = –0.071, p = 0.544r = 0.152, p = 0.193r = 0.075, p = 0.521
Seleniumr = –0.086, p = 0.923r = 0.021, p = 0.906r = –0.017, p = 0.902
Vitamin Cr = 0.156, p = 0.183r = 0.156, p = 0.182r = 0.037, p = 0.753
Vitamin Er = –0.018, p = 0.874r = –0.003, p = 0.982r = –0.100, p = 0.396
CATr = –0.187, p = 0.473r = –0.008, p = 0.947r = –0.115, p = 0.325
SODr = –0.030, p = 0.790r = –0.067, p = 0.569r = –0.177, p = 0.128
GSHr = –0.285, p = 0.013r = 0.101, p = 0.390r = –0.029, p = 0.804
TACr = –0.083, p = 0.458r = 0.059, p = 0.616r = 0.151, p = 0.197

r = Pearson correlation. MDA: malondialdehyde; CAT: catalase; SOD: superoxide dismutase; CAT: catalase; GSH: glutathione; TAC: total antioxidant capacity.