Participants’ baseline characteristics (n = 336)
| Intervention group | Control group | |
|---|---|---|
| Total, n | 176 | 160 |
| Female, n (%) | 123 (70) | 109 (68) |
| Mean age at inclusion, years (SD) | 42.4 (13.8) | 42.9 (14.1) |
| Mean socioeconomic status score (SD) | 0.174 (1.012) | −0.137 (1.003) |
| With prior psychological symptoms or disorders, n (%) | 123 (70) | 108 (68) |
| Mean baseline SCL-90-R score (SD) | 178.7 (54.1) | 173.5 (57.1) |
| Mean baseline EQ-5D-5L VAS score (SD) | 61.6 (19.0) | 65.0 (16.9) |
| Mean baseline EQ-5D-5L index (SD) | 0.699 (0.191) | 0.716 (0.191) |
EQ-5D-5L = EuroQol 5 Dimensions 5 Levels. SCL-90-R = Symptom Checklist-90-Revised. SD = standard deviation. VAS = visual analogue scale.