Table 1 Data sources for the current secondary analysis
Study characteristics | Study 1 | Study 2 | Study 3 |
|---|---|---|---|
Number of health states | 4 | 3 | 16 |
Description of health states | Osteoarthritis: three severity levels, plus one adverse event | Adult ADHD: responder, non-responder, untreated | Schizophrenia with a range of treatment-related adverse events |
Utility assessment method | TTO, SG | TTO | TTO |
Geographic location | London (UK) | London and Edinburgh (UK) | San Francisco (US) |
Dates of data collection | November 2011 | October 2012 | April-May 2012 |
Sample size | |||
Total | 80 | 158 | 126 |
Caregivers | 30 | 47 | 29 |
Non-caregivers | 50 | 111 | 97 |