Table 3.

Correlation coefficients between ADI-12 and psycho-social measures.

	HADS-A	HADS-D	MQoL total	MQoL physical	MQoL psychological	MQoL existential†	MQoL support†
ADI-12 total	0.35**	0.54**	−0.54**	−0.43**	−0.53**	−0.41**	−0.09
ADI-12-ME	0.42**	0.53**	−0.59**	−0.42**	−0.57**	−0.46**	−0.15
ADI-12-A	0.18	0.42**	−0.34**	−0.33**	−0.35**	−0.26*	−0.01

ADI-12, ALS Depression Inventory-12; ME, Negative Mood and Lack of Energy component of ADI-12; A, Anhedonia component of ADI-12; HADS-A/-D, Hospital Anxiety and Depression Scale-Anxiety/-Depression; MQoL, McGill Quality of Life Questionnaire.

^† Spearman's coefficients;

^* significant at α = 0.05;

^**significant at α = 0.01.