Table 3. Analysis of associations between levels of examined interleukins and clinical presentation of gastric carcinoma in patients (modelling using multivariate regression analysis).

Dependent variable	Independent variable	β	R2	p
Gastric cancer TNM staging*	IL-17	−0.10	0.01	0.48
	IL-23	−0.21	0.05	0.15

β – standardized coefficient in the regression equation. p – level of significance. IL – interleukin. *Variable was created by assigning 1, 2, 3 or 4 value to appropriate TNM stage detected in patients with gastric cancer.