2.1. Intervention
OptiMal is a multidisciplinary in-person group-based, six-week self-management intervention delivered once per week for 2.5 h. See OptiMal was delivered in the hospital in which the study was carried out. Four programmes were delivered during the study period by author LB who is an occupational therapist. Training in the content and delivery of OptiMal was provided to facilitators by author DC who designed OptiMal and delivered previous OptiMal training.