Table 2.

Comparison of couple scores.

Patient score	Caregiver score	Correlation coefficient
BDI	BDI STAIs CSI	0.590** ns 0.373*
STAIs	STAIs BDI	0.516** 0.708**
BOFRETTA anxiety	BOFRETTA anxiety BDI	0.375* 0.466*
BOFRETTA attitude	BOFRETTA attitude	ns
Years with ALS	CSI	ns
ALS-FRS	CSI BDI STAIs BOFRETTA anxiety BOFRETTA attitude	−0.629** ns ns ns ns

ALS-FRS, ALS Functional Rating Scale; BDI, Beck Depression Inventory; STAIs, State-Trait Anxiety Inventory, state subscale; CSI, Caregiver Strain Index; BOFRETTA, Bochumer Fragebogen zur Einstellung zum Tod und zur Angst vor dem Tod (Bochum Questionnaire regarding Attitude toward and Anxiety for Death), subscales anxiety and attitude; ns, non-significant;

^*Statistically significant;

^**Statistically highly significant.