one more, and around 15 of those experience chronic recurrence. Fisher JC, Powers WE, Tuerk DB, Edgerton MT (March 1975). "Epidemiology of Suicide and the Psychiatric Perspective". The essential feature of persistent depressive disorder (dysthymia) is a depressed mood that occurs for most of the day, for more days than not, for at least 2 years (at least 1 year for children and adolescents). Archived from the original on Time to Change. "Psychological treatment of late-life depression: a meta-analysis of randomized controlled trials". "Cara Delevingne Opens Up About Her Childhood, Love Life, and Why Modeling Just Isn't Enough". "Marilyn Monroe's Final Years". In their subjects, the authors of that study were able to achieve a sensitivity of 80 and a specificity of 87, corresponding to a negative predictive value of 98 and a positive predictive value of 32 (positive and negative likelihood ratios were.15,.23, respectively). "The medicalisation of misery: A critical realist analysis of the concept of depression".
22 In severe cases, depressed people may have symptoms of psychosis. A b c Cipriani A, Zhou X, Del Giovane C, Hetrick SE, Qin B, Whittington C, Coghill D, Zhang Y, Hazell P, Leucht S, Cuijpers P, Pu J, Cohen D, Ravindran AV, Liu Y, Michael KD, Yang L, Liu L, Xie P (August 2016). "Frank Bruno interview I've finally beaten my mental health demons". Archived (PDF) from the original on 17 December 2008. Retrieved 5 February 2018. The assessment also includes a mental state examination, which is an assessment of the person's current mood and thought content, in particular the presence of themes of hopelessness or pessimism, self-harm or suicide, and an absence of positive thoughts or plans. "Barbara Walters Interviews Johnny Carson". 1 "Courteney Cox Reveals Postpartum Depression".