Possible role of caffeine in nicotine use onset among early adolescents: Evidence from the Young Mountaineer Health Study Cohort

• Alfgeir L. Kristjansson ,

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

  * E-mail: alkristjansson@hsc.wvu.edu

  Affiliations Department of Social and Behavioral Sciences, West Virginia University School of Public Health, Morgantown, WV, United States of America, Icelandic Center for Social Research and Analysis, Reykjavik, Iceland

  https://orcid.org/0000-0001-8136-9210

  ⨯
• Steven M. Kogan,

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

  Affiliation Department of Human Development and Family Science, University of Georgia College of Family and Consumer Sciences, Athens, GA, United States of America

  ⨯
• Michael J. Mann,

  Roles Data curation, Funding acquisition, Methodology, Supervision, Writing – original draft, Writing – review & editing

  Affiliation Department of Community and Environmental Health, Boise State University, College of Health Sciences, Boise, ID, United States of America

  ⨯
• Megan L. Smith,

  Roles Data curation, Investigation, Methodology, Writing – review & editing

  Affiliation Department of Community and Environmental Health, Boise State University, College of Health Sciences, Boise, ID, United States of America

  https://orcid.org/0000-0002-4545-7480

  ⨯
• Christa L. Lilly,

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

  Affiliation Department of Epidemiology and Biostatistics, West Virginia University School of Public Health, Morgantown, WV, United States of America

  ⨯
• Jack E. James

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

  Affiliation Department of Psychology, Reykjavik University, Reykjavik, Iceland

  ⨯