Person-Centered Trajectories of Psychopathology From Early Childhood to Late Adolescence.

Importance: The understanding of the development of psychopathology has been hampered by a reliance on cross-sectional data and symptom- or disorder-centered methods. Person-centered methods can accommodate both the problems of comorbidity and the movement between different psychopathological states at different phases of development.

Objective: To examine the profiles and map the trajectories of psychopathology from early childhood to late adolescence.

Excessive and pathological Internet use - Risk-behavior or psychopathology?

Pathological Internet use (but only with respect to gaming) is classified as mental disorder in the ICD-11. However, there is a large group of adolescents showing excessive Internet use, which may rather be considered adolescent risk-behavior. The aim was to test whether pathological and excessive Internet use should be considered as "psychopathology" or "risk-behavior".

Risk and protective factors for psychotic experiences in adolescence: a population-based study.

Background: Psychotic experiences (PEs) are reported by a significant minority of adolescents and are associated with the development of psychiatric disorders. The aims of this study were to examine associations between PEs and a range of factors including psychopathology, adversity and lifestyle, and to investigate mediating effects of coping style and parental support on associations between adversity and PEs in a general population adolescent sample.

Method: Cross-sectional data were drawn from the Irish centre of the Saving and Empowering Young Lives in Europe study.

Life Events Predicting the First Onset of Adolescent Direct Self-Injurious Behavior-A Prospective Multicenter Study.

Purpose: Self-injurious behavior is a frequent phenomenon in adolescence. The present study prospectively examined life events as risk factors for the first onset of direct self-injurious behavior (D-SIB) in the Saving and Empowering Young Lives in Europe school-based multicenter sample.

Methods: Longitudinal assessments with an interval of 1 year were performed within a sample of 1,933 adolescents (51.

Physical activity in European adolescents and associations with anxiety, depression and well-being.

In this cross-sectional study, physical activity, sport participation and associations with well-being, anxiety and depressive symptoms were examined in a large representative sample of European adolescents. A school-based survey was completed by 11,110 adolescents from ten European countries who took part in the SEYLE (Saving and Empowering Young Lives in Europe) study. The questionnaire included items assessing physical activity, sport participation and validated instruments assessing well-being (WHO-5), depressive symptoms (BDI-II) and anxiety (SAS).

The association between parental and adolescent substance misuse: findings from the Irish CASE study.

Background: Self-report data from 2716 adolescents aged 15-17 years old in Irish schools were analysed to consider the association between psycho-social factors and the presence of adolescent substance and alcohol abuse, with an emphasis on family circumstances.

Methods: Data were collected using the 'Lifestyle and Coping Questionnaire' which includes questions about lifestyle, coping, problems, alcohol and drug use, deliberate self-harm, depression, anxiety, impulsivity and self-esteem. Two additional questions were added to the standard questionnaire regarding parental substance misuse.

Risk-behaviour screening for identifying adolescents with mental health problems in Europe.

Indicated prevention of mental illness is an important public health concern among youth. The aim of this study was to establish a European school-based professional screening among adolescents, which included variables on both a broad range of risk-behaviours and psychopathology; and to investigate the indicative value of adolescent risk-behaviour and self-reported psychopathology on help-seeking and psychological problems that required subsequent mental healthcare. A two-stage professional screening approach was developed and performed within the multi-centre study "Saving and Empowering Young Lives in Europe" (SEYLE).

Life-time prevalence and psychosocial correlates of adolescent direct self-injurious behavior: a comparative study of findings in 11 European countries.

Objectives: To investigate the prevalence and associated psychosocial factors of occasional and repetitive direct self-injurious behavior (D-SIB), such as self-cutting, -burning, -biting, -hitting, and skin damage by other methods, in representative adolescent samples from 11 European countries.

Methods: Cross-sectional assessment of adolescents was performed within the European Union funded project, Saving and Empowering Young Lives in Europe (SEYLE), which was conducted in 11 European countries. The representative sample comprised 12,068 adolescents (F/M: 6,717/5,351; mean age: 14.