Table 1 Latent classes of quality of life identified by latent class analysis
Items of EQ-5D questionnaire | Levels of quality of life (Class size) | |
|---|---|---|
Low 621(0.20) | High 2442(0.80) | |
Mobility | ||
 I have no problems in walking about | 0.69 | 0.99 |
 I have some problems in walking about/I am confined to bed | 0.31 | 0.01 |
Self-care | ||
 I have no problems with self-care | 0.99 | 1.00 |
 I have some problems washing or dressing myself/I unable to wash or dress myself Usual activities (e.g. work, study, housework, family or leisure activities) | 0.01 | 0.00 |
Daily activity | ||
 I have no problems with performing my usual activities | 0.95 | 1.00 |
 I have some problems with performing my usual activities/I am unable to perform my usual activities | 0.05 | 0.00 |
Pain/discomfort | ||
 I have no pain or discomfort | 0.94 | 1.00 |
 I have moderate pain or discomfort/I have extreme pain or discomfort | 0.06 | 0.00 |
Anxiety/depression | ||
 I am not anxious or depressed | 0.13 | 0.89 |
 I am moderately anxious or depressed/I am extremely anxious or depressed | 0.87 | 0.11 |