Collaborative care vs consultation liaison for depression and anxiety disorders in general practice: study protocol for two randomized controlled trials (the Danish Collabri Flex trials)

摘要

BackgroundModels of collaborative care and consultation liaison propose organizational changes to improve the quality of care for people with common mental disorders, such as anxiety and depression. Some literature suggests only short-term positive effects of consultation liaison on patient-related outcomes, whereas collaborative care demonstrates both short-term and long-term positive effects. To our knowledge, only one randomized trial has compared the effects of these models. Collaborative care was superior to consultation liaison in reducing symptoms of depression for up to 3 months, but the authors found no difference at 9-months' follow-up. The Collabri Flex Trial for Depression and the Collabri Flex Trial for Anxiety aim to compare the effects of collaborative care with those of a form of consultation liaison that contains potential contaminating elements from collaborative care. The trials build on knowledge from the previous cluster-randomized Collabri trials.