After written informed consent was obtained, the baseline measurements were completed by participants supervised by a trained research assistant (RA). Only participants found to meet the DASS scoreinclusion criteria progressed to the randomisation stage, where theywere individually assigned to either the LY or TAU control group (alsoD. Bressington et al. Journal of Affective Disorders 248 (2019) 42–5143using random numbers generated by the randomisation service). Allrandomisation was carried out by a researcher not otherwise directlyinvolved in the study. Due to the nature of the intervention it was notpractical to blind participants or study personnel to treatment allocation after baseline assessments were conducted.