From: Quality of Life as an outcome in Alzheimer's disease and other dementias- obstacles and goals
Person surveyed or person defining | Measures to describe QoL | Procedures to valuate QoL | ||
---|---|---|---|---|
Generic | Disease-specific | Externally defined a | Preference-based b | |
Patient | I | II | - | 1 |
Proxy | III | IV | - | 2 |
Scientist | - | - | 3 | - |
Population | - | - | - | 4 |