OBJECTIVES Cohort studies must collect data from their participants as economically as possible, while maintaining response rates. This randomized controlled trial investigated whether offering a choice of online or paper questionnaires resulted in improved response rates compared with offering online first. STUDY DESIGN AND SETTING Eligible participants were young people in the Avon Longitud...

OBJECTIVE Exposure to adverse social environments has been associated with psychotic and depressive symptoms in adolescence in cross-sectional studies, but the longitudinal relation is unclear. This study examined whether longitudinal trajectories of exposure to adverse social environments across childhood are associated with psychotic experiences and depressive symptoms in adolescence. METHO...

OBJECTIVES There have been conflicting data suggesting that prenatal mercury exposure is associated with adverse cardiovascular measures in children. We therefore analysed a large prospective population study to investigate whether prenatal mercury exposure might influence offspring blood pressure (BP) and heart rate adversely. DESIGN Prospective birth cohort. SETTING The Avon Longitudinal ...

The aim of the present study was to investigate the influence of anxiety at 13 years of age on the presence of chronic pain, pain-related anxiety, and pain-related disability at 17 years of age in a large longitudinal cohort. We hypothesized that mother-reported anxiety at 13 would be associated with the presence of chronic pain at 17 and an increase in pain-related anxiety using all available ...

BACKGROUND Overgeneral autobiographical memory has repeatedly been identified as a risk factor for adolescent and adult psychopathology but the factors that cause such over-generality remain unclear. This study examined the association between childhood exposure to traumatic events and early adolescent overgeneral autobiographical memory in a large population sample. METHODS Thirteen-year-old...

conclusions parental style could play a different role in conducting risky behaviors among girls and boys. therefore, appropriate parental styles should be used in bringing up children based on their gender. background gender differences play an important role in risky behaviors such as drug use, of the youth. despite having a substantial youth population in the middle east north africa (mena) ...

in 2010, the ministry of education of one of the most diverse provinces in canada initiated the implementation of a support program for newcomer students to facilitate their academic, linguistic, social, and cultural adaptation in french speaking schools. this longitudinal multiple case study will document how immigrant parents support their children’s learning, and create a home environment co...