Table 1.
EuroQol (EQ-5D) Summary Scores and QALY Estimates
| Outcome | TAU Mean (SD) |
CBT Mean (SD) |
Adjusted Mean Difference* (95% CI) |
|---|---|---|---|
| EQ-5D scores | |||
| Baseline | 0.5233 (0.3578) | 0.4872 (0.3656) | |
| 6 Months | 0.5793 (0.3640) | 0.4916 (0.3230) | −0.0757 (−0.1918 to 0.0404) |
| 12 Months | 0.6048 (0.3737) | 0.5098 (0.4535) | −0.0763 (−0.2306 to 0.0779) |
| 18 Months | 0.6797 (0.3067) | 0.6206 (0.3304) | −0.0479 (−0.1616 to 0.0657) |
| 24 Months | 0.6550 (0.3493) | 0.6033 (0.3877) | −0.0402 (−0.1685 to 0.0880) |
| QALYs | 1.2042 (0.4724) | 1.0633 (0.5614) | −0.1082 (−0.2613 to 0.0449) |
Note. QALYs represent a quality-weighted measure of health outcome over the 2-years follow-up. EQ-5D scores at each follow-up assessment are used to quality-weight each follow-up period. Area-under curve calculations are then used to estimate QALYs. For example, an individual with perfect health would have an EQ-5D score of 1—this would translate to a QALY estimate of 2 QALYs over the 2-year follow-up.
*
Adjusted for baseline EQ-5D scores