Validity and reliability
Death
The Brazilian version of WHOQOL-BREF presented good performance concerning internal consistency (α = 0.91), discriminant validity, criterion validity, concurrent validity and test-retest reliability (correlational coefficient scores above 0.7)The Cronbach’s α coefficients of WHOQOL-BREF in this study at baseline were as follows: Physical Health (α = 0.833), Psychological (α = 0.666), Social Relationships (α = 0.507), Environment (α=0.716), and Overall QoL (α = 0.847). At month 2, the internal consistency reliability coefficients (Cronbach’s α) were as follows: 0.776, 0.598, 0.750, 0.651 and 0.803, respectively. At year 1, these coefficients (Cronbach’s α) were 0.831, 0.809, 0.604, 0.706 and 0.909.Regarding WHOQOL-OLD, the Cronbach’s α coefficients at baseline were the following: Sensory Abilities (α = 0.214), Autonomy (α = 0.558), Past, Present and Future Activities (α = 0.695), Social Participation (α = 0.497), Death and Dying (α = 0.827), Intimacy (α = 0.936) and Overall (α = 0.785). At month 2, they were 0.410, 0.521, 0.389, 0.414, 0.841, 0.832 and 0.681, respectively. At year 1, these coefficients were 0.583, 0.589, 0.475, 0.673, 0.665, 0.803 and 0.763. 