| Time Point | Groups A and B, mean (SD) | β (SD) | d a | 95 % CI | |
---|---|---|---|---|---|---|
 | LL | UL | ||||
Subjective happiness (4 items, 1–7 scale) | Baseline | 4.12 (.16) | – | – | – | – |
4Â weeks | 4.22 (.16) | .10 (.04) | .20b | .030 | .167 | |
12Â weeks | 4.26 (.16) | .14 (.04) | .27c | .068 | .209 | |
Health-related quality of life (12 items, 0–100 scale) |  |  |  |  |  |  |
 Mental component | Baseline | 38.68 (1.26) | – | – | – | – |
4Â weeks | 39.51 (1.26) | .82 (.33) | .17d | .174 | 1.472 | |
12Â weeks | 39.86 (1.27) | 1.17 (.34) | .24c | .518 | 1.834 | |
 Physical component | Baseline | 50.62 (1.04) | – | – | – | – |
4 weeks | 50.38 (1.04) | −.24 (.28) | −.06 | −.784 | .306 | |
12 weeks | 50.91 (1.05) | .29 (.28) | .07 | −.263 | .841 |