Original ArticlesStability and Change in Personality Disorder Symptoms in 1-Year Follow-up of Depressed Adolescent OutpatientsStrandholm, Thea LicA (Psych)*†; Kiviruusu, Olli MSocSc*; Karlsson, Linnea MD, PhD*‡; Pankakoski, Maiju MSocSc*; Pelkonen, Mirjami PhD*; Marttunen, Mauri MD, PhD*§Author Information *Mental Health Unit, Department of Health, National Institute for Health and Welfare; †Institute of Behavioural Sciences, University of Helsinki, Helsinki; ‡Department of Child Psychiatry, Turku University Central Hospital, Turku; and §Adolescent Psychiatry, University of Helsinki and Helsinki University Hospital, Helsinki, Finland. Send reprint requests to Thea Strandholm, LicA (Psych), Mental Health Unit, Department of Health, National Institute for Health and Welfare, Mannerheimintie 168B, FI-00270 Helsinki, Finland. E-mail: [email protected]. The Journal of Nervous and Mental Disease: January 2017 - Volume 205 - Issue 1 - p 15-22 doi: 10.1097/NMD.0000000000000623 Buy Metrics Abstract We investigated stability and change in personality disorder (PD) symptoms and whether depression severity, comorbid clinical psychiatric disorders, and social support predict changes in personality pathology among adolescent outpatients. The 1-year outcome of PD symptoms among consecutive adolescent psychiatric outpatients with depressive disorders (N = 189) was investigated with symptom count of depression, comorbid psychiatric disorders, and perceived social support as predictors. An overall decrease in PD symptoms in most PD categories was observed. Decreases in depression severity and in number of comorbid diagnoses correlated positively with decreases in PD symptoms of most PD categories. Social support from close friends predicted a decrease in schizotypal and narcissistic, whereas support from family predicted a decrease in paranoid symptoms. Our results suggest that among depressed adolescent outpatients, PD symptoms are relatively unstable, changes co-occuring with changes/improvement in overall psychopathology. Social support seems a possibly effective point for intervention efforts regarding positive outcome of PD symptoms. Copyright © 2016 Wolters Kluwer Health, Inc. All rights reserved.