Table 3.

Hierarchical linear regression for patient’s inflammatory bowel disease-knowledge inventory device score as an independent variables (model 3; details of model 1 and 2 are shown in Supplementary Table 2)

Independent variables		Model 3
		B (SE)	Beta	P value
Patient’s sex		-1.03 (0.44)	-0.13	0.021
Place of residence		0.41 (0.45)	0.05	0.37
Patient’s age		0.03 (0.01)	0.24	< 0.001
Patient’s self-assessment of knowledge	Low vs medium	-1.87 (1.46)	-0.12	0.20
	Good vs medium	-0.74 (0.74)	-0.09	0.32
Parent’s self-assessment of knowledge	Low vs medium	-1.24 (1.68)	-0.08	0.46
	Good vs medium	-1.66 (0.74)	-0.21	0.026
J-elita membership		0.69 (0.55)	0.07	0.21
Internet as a source of knowledge		0.67 (0.47)	0.08	0.16
Parent’s IBD-KID score		0.33 (0.06)	0.32	< 0.001
Immunosuppressive agent		-0.12 (0.51)	-0.01	0.82
Biological agent		0.26 (0.52)	0.03	0.61
Nutritional therapy		0.38 (0.48)	0.05	0.43
Surgical therapy		1.26 (0.76)	0.10	0.098
Raw/Corrected R2		0.311/0.269
F for change in R2		1.108
P value for R2 change		0.35

P value for the significance of the independent variable in the multivariate model. Dependent variable: patient’s IBD-KID score, model assessment: model 3 – df = 14, F = 7.562, P < 0.001. IBD-KID: Inflammatory bowel disease-knowledge inventory device; B: Unstandardised regression coefficient; SE: Standard error; Beta: Standardised regression coefficient; sec.: Secondary education.