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Peer status in school and adult disease risk: a 30-year follow-up study of disease-specific morbidity in a Stockholm cohort
  1. Y Almquist
  1. Centre for Health Equity Studies (CHESS), Stockholm University/Karolinska Institutet, Stockholm, Sweden
  1. Correspondence to Y Almquist, Centre for Health Equity Studies (CHESS), Stockholm University/Karolinska Institutet, SE-106 91 Stockholm, Sweden; ylva.almquist{at}


Background: Children have a social status position of their own, apart from that of the family, that may have an impact on short-term and long-term health. The aim of the present study was to analyse the associations between childhood social status in school (ie, peer status) and disease-specific morbidity in adulthood.

Methods: Data were derived from a longitudinal study using a 1953 cohort born in Stockholm, Sweden: The Stockholm Birth Cohort Study (1953–2003). Peer status was sociometrically assessed in sixth grade (1966). Hazard ratios for adult disease-specific morbidity based on information on inpatient care (1973–2003) were calculated by peer status category for men and women separately, using Cox regression.

Results: The results indicate that the lower the childhood peer status, the higher the overall adult disease risk. There were, however, differences in the degree and magnitude to which disease-specific inpatient care varied with peer status. Some of the steepest gradients were found for mental and behavioural disorders (eg, alcohol abuse and drug dependence), external causes (eg, suicide) and various lifestyle-related diseases (eg, ischaemic heart disease and diabetes). The results were not explained by childhood social class.

Conclusion: The present study underlines the importance of recognising children’s social position, apart from that of their family, for later health. Not only psychologically related diseases but also those related to behavioural risk factors demonstrate some of the largest relative differences by peer status, suggesting that health-related behaviour may be one important mechanism in the association between peer status and morbidity.

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  • Funding This study was supported financially by the Swedish Council for Working Life and Social Research and the Swedish Research Council.

  • Competing interests None.

  • Ethics approval Stockholm Regional Ethics Committee.

  • Provenance and Peer review Not commissioned; externally peer reviewed.