Table 1 Health-related quality of life measures: definitions and the consistency of multi-item measures
Measures | Definition | Number of Items | Cronbachs's Alphaa |
|---|---|---|---|
Overall Health | Perception of current health | 1 | – |
Pain | Perception of overall pain | 1 | – |
Physical Functioning | Extent to which health interferes with a variety of activities | 6 | 0.84 |
Role Functioning | Extent to which health interferes with usual daily activities | 2 | 0.89 |
Social Functioning | Extent to which health interferes with normal social activities | 1 | – |
Mental Health | General mood or affect, including depression, anxiety, well-being | 5 | 0.85 |
Energy/Fatigue | Extent to which patient felt fatigued | 4 | 0.87 |
Cognitive Functioning | Extent to which reasoning or concentration was impaired | 4 | 0.88 |