Elevated plasma cotinine is associated with an increased risk of developing IBD, especially among users of combusted tobacco

• Lovisa Widbom ,

  Roles Conceptualization, Data curation, Writing – original draft

  * E-mail: lovisa.widbom@umu.se

  Affiliation Department of Medical Biosciences, Clinical Chemistry, Umeå University, Umeå, Sweden

  http://orcid.org/0000-0003-0787-3368

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• Jörn Schneede,

  Roles Methodology, Resources, Writing – review & editing

  Affiliation Department of Pharmacology and Clinical Neuroscience, Clinical Pharmacology, Umeå University, Umeå, Sweden

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• Øivind Midttun,

  Roles Methodology, Resources, Writing – review & editing

  Affiliation Bevital AS, Bergen, Norway

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• Per Magne Ueland,

  Roles Methodology, Resources, Writing – review & editing

  Affiliation Medicine and Pathology, Haukeland University Hospital, Bergen, Norway

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• Pontus Karling,

  Roles Conceptualization, Data curation, Funding acquisition, Methodology, Project administration, Resources, Writing – review & editing

  Affiliation Department of Public Health and Clinical Medicine, Medicine, Umeå University, Umeå, Sweden

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• Johan Hultdin

  Roles Conceptualization, Data curation, Funding acquisition, Methodology, Resources, Writing – original draft

  Affiliation Department of Medical Biosciences, Clinical Chemistry, Umeå University, Umeå, Sweden

  http://orcid.org/0000-0002-9599-0961

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