Maternal 25(OH)D concentrations ≥40 ng/mL associated with 60% lower preterm birth risk among general obstetrical patients at an urban medical center

• Sharon L. McDonnell,

  Roles Formal analysis, Software, Visualization, Writing – original draft, Writing – review & editing

  Affiliation GrassrootsHealth, Encinitas, California, United States of America

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• Keith A. Baggerly,

  Roles Formal analysis, Software, Visualization, Writing – review & editing

  Affiliation Deptartment of Bioinformatics and Computational Biology, The University of Texas MD Anderson Cancer Center, Houston, Texas, United States of America

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• Carole A. Baggerly,

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

  Affiliation GrassrootsHealth, Encinitas, California, United States of America

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• Jennifer L. Aliano,

  Roles Project administration

  Affiliation GrassrootsHealth, Encinitas, California, United States of America

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• Christine B. French ,

  Roles Writing – review & editing

  * E-mail: christine@grassrootshealth.org

  Affiliation GrassrootsHealth, Encinitas, California, United States of America

  http://orcid.org/0000-0001-5859-7231

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• Leo L. Baggerly,

  Roles Formal analysis

  Affiliation GrassrootsHealth, Encinitas, California, United States of America

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• Myla D. Ebeling,

  Roles Data curation

  Affiliation Medical University of South Carolina Children’s Hospital, Charleston, South Carolina, United States of America

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• Charles S. Rittenberg,

  Roles Validation

  Affiliation Medical University of South Carolina Children’s Hospital, Charleston, South Carolina, United States of America

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• Christopher G. Goodier,

  Roles Investigation, Validation

  Affiliation Medical University of South Carolina Children’s Hospital, Charleston, South Carolina, United States of America

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• Julio F. Mateus Niño,

  Roles Investigation, Validation

  Affiliation Medical University of South Carolina Children’s Hospital, Charleston, South Carolina, United States of America

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• Rebecca J. Wineland,

  Roles Investigation, Validation

  Affiliation Medical University of South Carolina Children’s Hospital, Charleston, South Carolina, United States of America

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• Roger B. Newman,

  Roles Conceptualization, Supervision, Validation, Writing – review & editing

  Affiliation Medical University of South Carolina Children’s Hospital, Charleston, South Carolina, United States of America

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• Bruce W. Hollis,

  Roles Conceptualization

  Affiliation Medical University of South Carolina Children’s Hospital, Charleston, South Carolina, United States of America

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• Carol L. Wagner

  Roles Conceptualization, Funding acquisition, Writing – review & editing

  Affiliation Medical University of South Carolina Children’s Hospital, Charleston, South Carolina, United States of America

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