Table 4.

Multiple regression models with stepwise backward elimination

Variable	GAD-7	PHQ-8	ULQIE
Adjusted R2 for model	.336	.384	.516
Gender	n.s	n.i	n.s
Psychological care	n.s	n.s	n.s
Weekly working hours	B =  −.181; p = .001	B =  −.221; p = .001	B = .016; p = .012
Comorbidities	n.i	n.i	B =  −.496; p = .007
Neurodevelopmental impairment	B = 5.131; p = .002	B = 5.897; p = .002	n.s
Number of independent caretakers	n.s	n.s	B = .183; p < .001
FaBeL total score	n.i	n.s	n.i
Sleep disturbance during last 7 days	n.i	n.s	n.s

n.i. not included, n.s. not significant, GAD-7 Generalized Anxiety Disorder Scale-7, PHQ-8 Patient Health Questionnaire-8, ULQIE Ulm Quality of Life Inventory for Parents of Chronically Ill Children