1. Department of Kinesiology and Community Health, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801-3028, United States
2. Department of Environmental and Radiological Health Sciences, Colorado State University, Fort Collins, Colorado 80523-1019, United States
3. Department of Statistics, Colorado State University, Fort Collins, Colorado 80523-1019, United States
4. ZevRoss Spatial Analysis, Ithaca, New York 14850, United States
5. Department of Environmental and Occupational Health, Colorado School of Public Health, University of Colorado Anschutz Medical Campus, Aurora, Colorado 80045, United States
6. Department of Epidemiology, Colorado School of Public Health, University of Colorado Anschutz Medical Campus, Aurora, Colorado 80045, United States
7. Lifecourse Epidemiology of Adiposity and Diabetes (LEAD) Center, University of Colorado Anschutz Medical Campus, Aurora, Colorado 80045, United States
8. Department of Pediatrics, School of Medicine, University of Colorado Anschutz Medical Campus, Aurora, Colorado 80045, United States