Preterm disparities between foreign and Swedish born mothers depend on the method used to estimate gestational age. A Swedish population-based register study

• Sol P. Juárez ,

  Contributed equally to this work with: Sol P. Juárez, Marcelo L. Urquia

  Roles Conceptualization, Data curation, Formal analysis, Funding acquisition, Investigation, Methodology, Writing – original draft, Writing – review & editing

  * E-mail: sol.juarez@su.se

  Affiliations Centre for Health Equity Studies (CHESS), Stockholm University/Karolinska Institutet, Stockholm, Sweden, Department of Public Health Sciences, Stockholm University, Stockholm, Sweden

  https://orcid.org/0000-0002-4944-0336

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• Marcelo L. Urquia ,

  Contributed equally to this work with: Sol P. Juárez, Marcelo L. Urquia

  Roles Conceptualization, Data curation, Formal analysis, Investigation, Methodology, Writing – original draft, Writing – review & editing

  Affiliations Department of Community Health Sciences, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, Canada, Dalla Lana School of Public Health, University of Toronto, Toronto, Canada

  https://orcid.org/0000-0002-8289-8090

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• Eleonora Mussino,

  Roles Conceptualization, Writing – review & editing

  Affiliation Stockholm University Demography Unit (SUDA), Stockholm University, Stockholm, Sweden

  https://orcid.org/0000-0002-5311-4277

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• Can Liu,

  Roles Conceptualization, Methodology, Writing – review & editing

  Affiliations Centre for Health Equity Studies (CHESS), Stockholm University/Karolinska Institutet, Stockholm, Sweden, Department of Public Health Sciences, Stockholm University, Stockholm, Sweden, Clinical Epidemiology Division/Department of Medicine, Karolinska Institutet, Stockholm, Sweden

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• Yao Qiao,

  Roles Writing – review & editing

  Current address: Johns Hopkins Bloomberg School of Public Health, Johns Hopkins University, Baltimore, Maryland, United States of America

  Affiliation Dalla Lana School of Public Health, University of Toronto, Toronto, Canada

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• Anders Hjern

  Roles Conceptualization, Funding acquisition, Methodology, Writing – review & editing

  Affiliations Centre for Health Equity Studies (CHESS), Stockholm University/Karolinska Institutet, Stockholm, Sweden, Department of Public Health Sciences, Stockholm University, Stockholm, Sweden, Clinical Epidemiology Division/Department of Medicine, Karolinska Institutet, Stockholm, Sweden

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