“…These factors might be related to informal caregivers, for example anxiety and depression (Burke et al., ; Vignola et al., ), problem‐solving skills (Murphy, Felgoise, Walsh, & Simmons, ) and lack of social support (Peters et al., ); or to patients with ALS, for example cognitive and behavioural impairments (Chio et al., ). Further, the quality of the relationship between caregivers and patients might be another important aspect (Cipolletta et al., ; Galvin et al., ). These factors were, however, not assessed in the present study.…”