1 Division of Preventive and Behavioral Medicine, Department of Population & Quantitative Health Sciences, University of Massachusetts Chan Medical School, Worcester, MA, USA.
2 Department of Epidemiology, Rollins School of Public Health, Emory University, Atlanta, GA, USA.
3 UPMC Health Plan, Pittsburgh, PA, USA.
4 Health Statistics and Geography Lab, Center for Health Statistics and Department of Public Health, Zuckerberg College of Health Sciences, University of Massachusetts, Lowell, MA, USA.