%0 Journal Article %T Development of the 12-item questionnaire for quantitative assessment of depressive mixed state (DMX-12) %A Akifumi Nakamura %A Hotaka Shinzato %A Munenaga Koda %A Tsuyoshi Kondo %J Archive of "Neuropsychiatric Disease and Treatment". %D 2019 %R 10.2147/NDT.S215478 %X Conventional categorical criteria have limitations in assessing the prevalence and severity of depressive mixed state (DMX). Thus, we have developed a new scale for screening and quantification of DMX and examined the symptomatological structure and severity of DMX in individuals with major depressive episode (MDE) %K major depressive episode %K depressive mixed state %K spontaneous instability %K vulnerable responsiveness %K disruptive emotion/behavior %U https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6642622/