(2001). Adolescent determinants of cardiovascular risk factors in adult men and women.
(1991). Ambulatory care groups: a categorization of diagnoses for research and management.
(2012). and Later Health Impairment PLoS
(1996). Associations between physical activity and other health behaviors in a representative sample of US adolescents.
(1998). Can conceptual physical education promote physically active lifestyles?
(2010). Childhood obesity and overweight prevalence trends in England: evidence for growing socioeconomic disparities.
(1997). Clustering of health-related behaviors among 18-year-old Australians.
(1999). Daily primary school physical education: effects on physical activity during adult life.
(2002). Decline in physical activity in black girls and white girls during adolescence.
(2010). Decrease in sick leave among patients with rheumatoid arthritis in the first 12 months after start of treatment with tumour necrosis factor antagonists: a population-based controlled cohort study. Annals of the rheumatic diseases 69:
(2009). Disparities in physical activity and sedentary behaviors among US children and adolescents: prevalence, correlates, and intervention implications.
Engstro ¨m L-M (2008) Who is physically active? Cultural capital and sports participation from adolescence to middle age - a 38-year follow-up study.
(2009). European Commission
(2004). Gender differences in health: a Canadian study of the psychosocial, structural and behavioural determinants of health.
(1999). Gender, psychosocial factors and the use of medical services: a longitudinal analysis.
(2006). Health benefits of physical activity: the evidence.
(2004). Health-enhancing physical activity and sedentary behaviour in children and adolescents.
(2008). How physical activity can work?
(2012). Impairment PLoS ONE | www.plosone.org 5
(2010). Interrelationships between education, occupational class, income and sickness absence.
(2008). Is there a long-term health legacy of required physical education?
(2004). Lifestyle related risk factors in the aetiology of gastro-oesophageal reflux.
(2004). Mastekaasa A
(2009). Obesity and the musculoskeletal system.
(1983). Obesity as an independent risk factor for cardiovascular disease: a 26-year follow-up of participants in the Framingham Heart Study.
(2009). Patients with ankylosing spondylitis have increased sick leave–a registry-based case-control study over 7 yrs. Rheumatology (Oxford)
(2006). Physical activity and clustered cardiovascular risk in children: a cross-sectional study (The European Youth Heart Study).
(1997). Physical activity in childhood and adolescence as predictor of physical activity in young adulthood.
(2010). Prevalence and incidence of rheumatoid arthritis in southern Sweden
(2004). Prevalence of overweight and obesity among US children, adolescents, and adults,
(2008). Scholastic achievement at age 16 and risk of schizophrenia and other psychoses: a national cohort study.
(1999). School performance in Finnish children and later development of schizophrenia: a population-based longitudinal study.
(2009). School Physical Education: The Pill Not Taken.
(2003). Secular trends in sports: participation and attitudes among adolescents in Sweden from
(1997). Self-rated health status as a health measure: the predictive value of self-reported health status on the use of physician services and on mortality in the working-age population.
(2008). Sickness absence and self-reported health a population-based study of 43,600 individuals in central Sweden.
(2003). Sickness absence as a global measure of health: evidence from mortality in the Whitehall II prospective cohort study.
(1995). Sickness absence as a measure of health status and functioning: from the UK Whitehall II study.
(2004). Sickness absence as a predictor of mortality among male and female employees.
(1969). Skolo ¨verstyrelsen
(2003). Smoking and musculoskeletal disorders: findings from a British national survey.
(2008). Socioeconomic inequalities in health in 22 European countries.
(2007). Strengthening the Reporting of Observational Studies in Epidemiology (STROBE) statement: guidelines for reporting observational studies.
(2008). The association between gastroesophageal reflux disease and obesity.
(1997). The effects of a 2-year physical education program (SPARK) on physical activity and fitness in elementary school students. Sports, Play and Active Recreation for Kids.
(2010). The grade in physical education in adolescence as predictor for musculoskeletal pain diagnoses three decades later.
(2002). The influence of perceived well-being and reported symptoms on health care utilization: a population-based study.
(2004). The pathophysiology of cigarette smoking and cardiovascular disease: an update.
(2006). The physical activity patterns of European youth with reference to methods of assessment.
(2007). The prevalence and clustering of four major lifestyle risk factors in an English adult population.
(2006). Worldwide trends in childhood overweight and obesity.