Prevalence of Bullying and its Co-occurrence with Aggression and Mental Health Problems among Greek Adolescents Attending Urban Schools.

Background: Bullying is one widespread violence type that threatens adolescent's well-being in family, school, and neighborhood. This study aimed to estimate the percentages of the last 12 months bullying behaviors- types among Greek adolescents, and to identify the associations between these behaviors and adolescents' aggression and mental health- behavioral problems.

Study Design: A cross-sectional study.

The impact of COVID-19 lockdown on children's and adolescents' mental health in Greece.

The aim of the study was to investigate the impact of the COVID-19 lockdown on children's and adolescents' mental health in Greece during the lockdown of spring 2020. A cross-sectional survey of 1232 Greek parents was conducted in spring 2020. 35.

[Epidemiological indicators and correlations of adolescent aggression in an urban student population].

Adolescent aggression has received a wide and longtime attention in scientific research, because of the extent of the phenomenon in this age group and of the negative consequences it inflicts on affected adolescents, and their human environments. The aim of this cross-sectional study was to determine the proportion (of high levels) of aggressive behaviors (physical, verbal, and direct aggression, anger, and hostility) in an urban sample of adolescent students, as well as to investigate associations between the occurrence of these behaviors, and adolescents' characteristics and mental health problems. The sample consisted of 2050 students attending the second grade of 49 random selected High Schools and Senior High Schools of the Regional Unit of the Central Sector of Attica and Piraeus.

Gambling in adolescents during the financial crisis in Greece.

Problem gambling emerges as a serious and ever growing problem of modern societies, largely affecting adolescents as well. The etiology of gambling disorder is complex and multifaceted as it is governed by multiple and interrelated factors. In this context and in light of the pervasive financial crisis in Greece, we conducted a study in order to explore adolescents' gambling involvement in Athens region and also to identify the socio-economic characteristics of adolescents who have engaged into gambling activities.