Impact of depressive symptoms on oxidative stress in patients with psoriasis

Figures & data

Table 1. Comparison between patient and control groups in terms of depression, anxiety, TAC and TOC levels, and OSI values

	Patients (n = 39)	Controls (n = 25)	P value
High depression score (n)	25/39	9/25	0.028
High anxiety score (n)	13/39	4/25	0.126
TAC (mmol Trolox)	1.03 ± 0.19	1.19 ± 0.26	0.005
TOC (μmol H2O2 equivalent/L)	26.92 ± 7.82	17.75 ± 6.85	0.001
OSI (arbitrary units)	2.69 ± 0.89	1.60 ± 1.04	0.001

Table 2. Comparison of the effects of depressive scores on TAC and TOC levels and OSI values in the patient and control groups

	Patient group with high depressive scores (n = 25)	Patient group with low depressive scores (n = 14)	Control group with high depressive scores (n = 9)	Control group with low depressive scores (n = 16)	P value
TAC (mmol Trolox)	1.04 ± 0.22	1.00 ± 0.15	1.05 ± 0.27	1.28 ± 0.23	0.0047*
TOC (μmol H2O2 equivalent/L)	27.04 ± 8.31	26.72 ± 7.17	19.16 ± 6.81	16.97 ± 6.97	<0.001**
OSI (arbitrary units)	2.68 ± 0.96	2.71 ± 0.80	2.06 ± 0.34	1.30 ± 0.71	<0.001***

*P < 0.05 for group 1 vs. group 4; group 2 vs. group 4; group 3 vs. group 4.

**P < 0.05 for group 1 vs. group 3; group 1 vs. group 4; group 2 vs. group 3; group 2 vs. group 4.

***P < 0.05 for group 1 vs. group 3; group 1 vs. group 4; group 2 vs. group 4; group 3 vs. group 4.