Table 4.

Multiple regression analyses for the Cystic Fibrosis Questionnaire-Revised (CFQ-R) in CF adults for HADS anxiety and depression.

	Regression Model Adjusted R²
Dependent Variable	HADS Anxiety Component		HADS Depression Component
CFQ-R Domains	%	p-Value	%	p-Value
Physical functioning	55.3	<0.0001	65.2	<0.0001
Role perception	26.6	0.001	21.1	0.003
Vitality	55.8	<0.0001	65.5	<0.0001
Emotion	70.6	<0.0001	61.4	<0.0001
Social perception	16.3	0.022	23.6	0.003
Body image	46.6	<0.0001	57.1	<0.0001
Eating disturbance	7.6	ns	7.6	ns
Treatment burden	26.1	0.008	12.0	0.023
Health perception	70.2	<0.0001	64.0	<0.0001
Weight	31.9	0.003	31.9	0.003
Respiratory symptoms	22.7	0.014	32.1	0.002
Digestive symptoms	33.6	0.001	24.0	0.011

R²: Regression coefficient model. HADS: Hospital Anxiety and Depression scale. R² bolded values represent the 3 higher values for each HADS component, ns: not significant.