Uncovering exposures responsible for birth season - disease effects: A global study

Mary Regina Boland, Pradipta Parhi, Li Li, Riccardo Miotto, Robert Carro, Usman Iqba, Phung Anh Nguyen, Martijn Schuemie, Seng Chan You, Donahue Smith, Sean Mooney, Patrick Ryan, Yu Chuan Li, Rae Woong Park, Josh Denny, Joel T. Dudley, George Hripcsak, Pierre Gentine, Nicholas P. Tatonetti

Research output: Contribution to journalArticlepeer-review

18 Citations (Scopus)

Abstract

Objective: Birth month and climate impact lifetime disease risk, while the underlying exposures remain largely elusive. We seek to uncover distal risk factors underlying these relationships by probing the relationship between global exposure variance and disease risk variance by birth season. Material and Methods: This study utilizes electronic health record data from 6 sites representing 10.5 million individuals in 3 countries (United States, South Korea, and Taiwan). We obtained birth month-disease risk curves from each site in a case-control manner. Next, we correlated each birth month-disease risk curve with each exposure. A meta-analysis was then performed of correlations across sites. This allowed us to identify the most significant birth month-exposure relationships supported by all 6 sites while adjusting for multiplicity. We also successfully distinguish relative age effects (a cultural effect) from environmental exposures. Results: Attention deficit hyperactivity disorder was the only identified relative age association. Our methods identified several culprit exposures that correspond well with the literature in the field. These include a link between first-trimester exposure to carbon monoxide and increased risk of depressive disorder (R=0.725, confidence interval [95% CI], 0.529-0.847), first-trimester exposure to fine air particulates and increased risk of atrial fibrillation (R=0.564, 95% CI, 0.363-0.715), and decreased exposure to sunlight during the third trimester and increased risk of type 2 diabetes mellitus (R=-0.816, 95% CI, -0.5767, -0.929). Conclusion: A global study of birth month-disease relationships reveals distal risk factors involved in causal biological pathways that underlie them.

Original languageEnglish
Pages (from-to)275-288
Number of pages14
JournalJournal of the American Medical Informatics Association
Volume25
Issue number3
DOIs
Publication statusPublished - Mar 1 2018

Keywords

  • Attention deficit hyperactivity disorder
  • Electronic health records
  • Environmental exposure
  • Pregnancy
  • Seasons

ASJC Scopus subject areas

  • Health Informatics

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