Internet gaming disorder and risky behaviours among Czech adolescents: A nationally representative study.

Background And Aims: The aim of the present study was to estimate the complex association between Internet Gaming Disorder (IGD), substance use, and other risky behaviours in Czech adolescents whilst providing prevalence estimates of IGD and psychometric information regarding the Czech Internet Gaming Disorder Scale-Short-Form (IGDS9-SF).

Methods: A representative sample of 3,950 Czech adolescents was recruited through stratified random sampling in the school setting.

Results: Disordered gamers showed frequent use of specific substances such as pharmaceuticals, methylenedioxymethamphetamine, and lysergic acid diethylamide.

Development of the Modified Yale Food Addiction Scale Version 2.0 summary version in a representative sample of Czech population.

Background: Food addiction receives attention because of its participation in the rising obesity prevalence that affects the quality of life. The Czech Republic's prevalence of obesity belongs to the highest in Europe.

Methods: We used the nationally representative non-clinical sample of 1841 respondents ( = 1841; 48,8% of men and 51.