

The differentiation between severe depression and a mild/moderate episode is that symptoms are more pronounced and numerous, while also impairing functioning to a greater extent.

Depression severity can be mediated by the presence of several other symptoms, including low self-confidence, disturbed sleep, poor concentration or suicidal thoughts. Ī typical diagnosis of depression as per the International Classification of Diseases, Tenth Revision involves an individual having at least one of 3 key symptoms of depression (depressed mood, loss of interest in daily activities, reduction in energy) for 2 weeks. These barriers can be more pronounced for severe depression, and most individuals with severe levels of depression do not receive adequate treatment. However, accessing evidence-based psychological interventions can be difficult because of the many barriers, including not having access to treatment due to a lack of health service resources. Research also suggests that two-thirds of clients with depression hold a preference for psychological interventions over pharmacological solutions. Historically, pharmacological interventions have been given precedence, but psychological interventions have demonstrated their efficacy. Evidence-based treatments for depression can comprise of pharmacological and psychological interventions.
