Objectives—The paper reviews the scientific literature concerning social differences in traffic injuries in childhood in order to highlight the current state of knowledge and to draw the main lines of a research agenda. Method—A conceptual framework is used that identifies the mechanisms through which social context, social position, and various exposures may interact in the determination of health inequalities. It is used as a frame for presenting the evidence accumulated so far concerning social differences in traffic injury in childhood, including pedestrian, cyclist, and vehicle passenger injuries. Results—For most types of traffic injuries, mortality and morbidity are often higher among children from lower social positions and in more deprived socioeconomic areas. Whether the greater occurrence of injuries in deprived areas is a phenomenon attributable to the areas themselves, or merely a reflection of a wider pattern of injuries affecting lower socioeconomic groups, is unclear. There is evidence of an interaction effect between age and gender, and also between socioeconomic status and gender. Conclusions—The mechanisms leading to social inequalities in traffic injuries in childhood deserve greater scrutiny in future research. Further theoretical developments and empirical investigation will help define intervention needs and enable more effective targeted, long term prevention.

In this study we investigated whether or not problems experienced during years at university affect academic achievement. Students enrolled full-time at a Swedish university were followed up from their year of entry in 1998/1999 through to 2000/2001 (N = 1,127) by self-administered questionnaires. Students' sociodemographic characteristics, their experience of stressors, psychological symptoms, and mental and general health ratings were linked to their academic achievement (degree completed). The extent to which various factors or groups of factors affect academic achievement was measured by a series of multiple logistic regression analyses. Older students, females, and those enrolled on comparatively shorter programs (3 years) tended to have higher odds of being awarded a degree. Experienced stress brought on by not coping academically and due to study support demands was a substantial barrier to students' academic achievement.

The Stockholm Public Health Cohort was set up within the Stockholm County Council public health surveys to inform on determinants and consequences of significant contributors to the current burden of disease. Participants are 89 268 randomly selected individuals from the adult population of Stockholm County. Baseline surveys took place in 2002, 2006 and 2010 via self-administered questionnaires. So far, participants recruited in 2002 were re-surveyed twice, in 2007 and 2010, and those enrolled in 2006 were re-surveyed once, in 2010. Self-reported data are regularly supplemented by information from national and regional health data and administrative registers, for study participants and their relatives (including their offspring). Available data are extensive and include a wide array of health, lifestyle, perinatal, demographic, socio-economic and familial factors. The cohort is an international resource for epidemiological research, and the data available to the research community for specific studies obtained approval from the Stockholm Public Health Cohort Steering Committee and the Stockholm Regional Ethical Review Board.