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. 2018 Oct 2;9:450. doi: 10.3389/fpsyt.2018.00450

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Copyright © 2018 Tolentino and Schmidt.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Summary of the results. Depressed mood is the most reliable DSM-5 symptom to discriminate moderately depressed (MD) group from non-depressed (ND) group. Loss of interest or pleasure discriminates severely depressed (SD) group from MD. Considering the secondary DSM-5 criteria, the somatic items discriminate MD from ND groups. All the non-somatic DSM-5 criteria separate MD from SD groups. The ellipses represent the non-somatic DSM-5 items and the rectangles the somatic DSM-5 items, according to the factor structure described by Elhai et al. (10). DM, depressed mood; LI, loss of interest or pleasure; SD, sleep difficulties (insomnia or hypersomnia); C, diminished ability to think or concentrate; FE, fatigue or loss of energy; FW, feelings of worthlessness or excessive guilt; SU, suicidality; AW, appetite or weight disturbance; PAR, psychomotor agitation or retardation.