Editor's pick
Types of depression: DSM-5 and ICD-11 classification, screening tools for each type
"Depression" is not one diagnosis but a family. Hasin et al. 2018 (NESARC-III, n=36,309): lifetime MDD in 20.6% of US adults, with 74.6% having anxious/distressed specifier — "pure" MDD without modifiers practically does not exist. DSM-5 distinguishes MDD, PDD, postpartum, atypical, melancholic, psychotic, seasonal — each changes the choice of instrument. PHQ-9, BDI-II, EPDS, CES-DC, HAM-D, Zung — which scale for which situation.