As dysthymia is a chronic disorder, those with the condition may experience symptoms for many years before it is diagnosed, if diagnosis occurs at all. As a result, they may believe that depression is a part of their character, so they may not even discuss their symptoms with doctors, family members or friends. In the DSM-5, dysthymia is replaced by persistent depressive disorder.[3] This new condition includes both chronic major depressive disorder and the previous dysthymic disorder. The reason for this change is that there was no evidence for meaningful differences between these two conditions.[10]
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Drs; Sartorius, Norman; Henderson, A.S.; Strotzka, H.; Lipowski, Z.; Yu-cun, Shen; You-xin, Xu; Strömgren, E.; Glatzel, J.; Kühne, G.-E.; Misès, R.; Soldatos, C.R.; Pull, C.B.; Giel, R.; Jegede, R.; Malt, U.; Nadzharov, R.A.; Smulevitch, A.B.; Hagberg, B.; Perris, C.; Scharfetter, C.; Clare, A.; Cooper, J.E.; Corbett, J.A.; Griffith Edwards, J.; Gelder, M.; Goldberg, D.; Gossop, M.; Graham, P.; Kendell, R.E.; Marks, I.; Russell, G.; Rutter, M.; Shepherd, M.; West, D.J.; Wing, J.; Wing, L.; Neki, J.S.; Benson, F.; Cantwell, D.; Guze, S.; Helzer, J.; Holzman, P.; Kleinman, A.; Kupfer, D.J.; Mezzich, J.; Spitzer, R.; Lokar, J. "The ICD-10 Classification of Mental and Behavioural Disorders Clinical descriptions and diagnostic guidelines"(PDF). www.who.int World Health Organization. Microsoft Word. bluebook.doc. p. 107. Archived(PDF) from the original on 17 October 2004. Retrieved 23 June 2021 – via Microsoft Bing.
^Gilbert, Daniel T.; Schacter, Daniel L.; Wegner, Daniel M., eds. (2011). Psychology (2nd ed.). New York: Worth Publishers. pp. 564. ISBN978-1-4292-3719-2.
^"Dysthymia". Harvard Health Publications. Harvard University. February 2005. Archived from the original(February 2005 issue of the Harvard Mental Health Letter) on 6 January 2010. Retrieved 12 December 2009.