Table 2.

The Mean and Standard Deviation of Measured TAC (Total Antioxidant Capacity) and PAB (Pro-Oxidant Antioxidant Balance) in the Serum of Patients Based on the Duration of the Disease in the 2 Groups of Schizophrenia Patients with First Episode or Multiple Episodes

	First Episode	Multiple Episodes	P- value
TAC (nmol/L) (mean ± SD)	0.50±0.03	0.48±0.05	0.70
PAB (HK†) (mean ± SD)	125.2±35.00	129.6±38.20	0.37

† Hamidi-Koliakos Arbitrary Unit Based on the Percentage of Hydrogen Peroxide Evaluated in Standard Solution