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Season and region of birth as risk factors for coeliac disease a key to the aetiology?
  1. Fredinah Namatovu1,
  2. Marie Lindkvist1,
  3. Cecilia Olsson2,
  4. Anneli Ivarsson1,
  5. Olof Sandström1,3
  1. 1Department of Public Health and Clinical Medicine, Epidemiology and Global Health, Umeå University, Umeå, Sweden
  2. 2Department of Food and Nutrition, Umeå University, Umeå, Sweden
  3. 3Department of Clinical Sciences, Pediatrics, Umeå University, Umeå, Sweden
  1. Correspondence to Fredinah Namatovu, Department of Public Health and Clinical Medicine, Epidemiology and Global Health, Umeå University, Umeå SE-901 87, Sweden; fredinah.namatovu{at}epiph.umu.se

Footnotes

  • Contributors All authors contributed equally to the conceptualisation of the study, data collection, selection of the study variables, study design, interpretation of study findings and revision of the manuscript, and have approved the submitted versions of the manuscript. FN performed the statistical analyses and wrote the manuscript. ML supervised the analysis, ensured quality of data and the study results. AI and OS provided clinical insights and interpretation of the study variables and findings.

  • Funding The study was funded by the Swedish Research Council, through the SIMSAM programme [839-2008-7491] and by the Swedish coeliac disease association, funders played no other role.

  • Competing interests None declared.

  • Ethics approval Swedish research ethical review board.

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

  • Data sharing statement All data used were obtained from Sweden’s national registers. These are open and data can be obtained upon request from Swedish data management agencies.

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Footnotes

  • Contributors All authors contributed equally to the conceptualisation of the study, data collection, selection of the study variables, study design, interpretation of study findings and revision of the manuscript, and have approved the submitted versions of the manuscript. FN performed the statistical analyses and wrote the manuscript. ML supervised the analysis, ensured quality of data and the study results. AI and OS provided clinical insights and interpretation of the study variables and findings.

  • Funding The study was funded by the Swedish Research Council, through the SIMSAM programme [839-2008-7491] and by the Swedish coeliac disease association, funders played no other role.

  • Competing interests None declared.

  • Ethics approval Swedish research ethical review board.

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

  • Data sharing statement All data used were obtained from Sweden’s national registers. These are open and data can be obtained upon request from Swedish data management agencies.

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