Table 2. Comparison of oxidative stress markers, visual analog scale, and SIJD of study groups.

	Control group (n=30)					Pre-treatment					Post-treatment					Pre-treatment	Pre-treatment­	Post-treatment
						Patients group (n=33)					Patients group					Control group	post-treatment	Control group
	n	%	Mean±SD	Median	Min-Max	n	%	Mean±SD	Median	Min-Max	n	%	Mean±SD	Median	Min-Max	p	p	p
IMA (µmol/L) Albumin (g/dL)			0.8±0.05					0.9±0.1					0.9±0.1			0.01†	0.25‡	0.01†
			3.9±0.2					4.0±0.1					4.0±0.1			0.66†	0.65‡	0.44†
Native thiol (µmol/L)			345.0±36.4					321.2±48.8					305.6±35.6			0.03*†	0.18‡	0.01*†
Total thiol (µmol/L)			387.5±39.6					360.6±46.9					343.6±38.2			0.02*†	0.12‡	0.01*†
Disulphide (µmol/L)			22.6±8.9					19.7±9.1					18.9±8.5			0.21†	0.78‡	0.10†
SS/SH			6.6±2.6					6.4±3.5					6.3±2.9			0.82†	0.89‡	0.66†
SS/total SH			5.8±2.2					5.5±2.7					5.5±2.3			0.65†	0.93‡	0.55†
Native thiol/total thiol (%)			89.1±0.0					89.0±5.4					89.1±4.7			0.88†	0.95‡	0.95†
Visual analog scale				0	0-0				81	60-100				39	0-85	0,01	0.01*¶	0.01||
SIJD (frequency)																	0.01*§
Negative	33	100				0	0				27	78
Positive	0	0				33	100				6	22
SIJD: Sacroiliac joint dysfunction; SD: Standard deviation; Min: Minimum; Max: Maximum; IMA: Ischemia-modified albumin; SS: Disulphide; SH: Native thiol; * Statistically significant: p<0.05; † Independent-samples t-test; ‡ Paired sample t-test; ¶ Wilcoxon test; § Fisher’s exact test; || Mann-Whitney U test.