Table 4.

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

Independent variables		Model 3
		B (SE)	Beta	P value
Place of residence		0.77 (0.44)	0.11	0.085
Patient’s age		-0.02 (0.01)	-0.18	0.003
Patient’s self-assessment of knowledge	Low vs medium	0.36 (1.56)	0.02	0.89
	Good vs medium	-1.06 (0.72)	-0.15	0.14
Parent’s self-assessment of knowledge	Low vs medium	-2.65 (1.73)	-0.17	0.13
	Good vs medium	-1.10 (0.71)	-0.15	0.12
J-elita membership		-0.02 (0.56)	0.00	0.97
Parent’s sex		-0.54 (0.54)	-0.06	0.32
Source books		0.66 (0.55)	0.08	0.23
Source journals		0.38 (0.55)	0.05	0.49
Parent’s level of education	Lower than sec. vs sec.	-1.99 (0.63)	-0.21	0.002
	Higher than sec. vs sec.	-1.14 (0.48)	-0.16	0.019
Immunosuppressive agent		1.85 (0.48)	0.24	< 0.001
Biological agent		0.33 (0.52)	0.04	0.53
Nutritional therapy		0.58 (0.47)	0.08	0.23
Surgical therapy		1.17 (0.73)	0.10	0.11
Raw/Corrected R2		0.238/0.185
F for change in R2		5.550
P value for R2 change		< 0.001

P value for the significance of the independent variable in the multivariate model. Dependent variable: Parent’s inflammatory bowel disease-knowledge inventory device score. Model assessment: Model 3 – df = 16, F = 4.440, P < 0.001. B: Unstandardised regression coefficient; SE: Standard error; Beta: Standardised regression coefficient; sec.: Secondary education.