From the aMinnesota Population Center, University of Minnesota School of Public Health, Minneapolis, MN
bDivision of Epidemiology and Community Health, University of Minnesota School of Public Health, Minneapolis, MN
cCollege of Business, University of Montana, Missoula, MT
dDivision of Environmental Health Sciences, University of Minnesota School of Public Health, Minneapolis, MN.
Submitted July 6, 2021; accepted May 10, 2022
The authors report no conflicts of interest.
Health data are collected by the Minnesota Hospital Association and accessed via secure VPN at the Minnesota Department of Health. Weather Data are available through the Iowa Mesonet. Lightning Data are available through the Severe Weather Data Inventory of the National Weather Service. All weather data are publicly available for download or through request. Pollen counts are available through agreement with the Clinical Research Institute of Minneapolis.
Supplemental digital content is available through direct URL citations in the HTML and PDF versions of this article (www.epidem.com).
Correspondence: M. Luke Smith, Minnesota Population Center, Division of Epidemiology and Community Health, University of Minnesota School of Public Health, Minneapolis, MN 55455. E-mail: [email protected].
