America Addresses Two Epidemics: Cannabis and Coronavirus and their Interactions: An Ecological Geospatial Study

Albert S Reece; Gary K Hulse

is the (which was not peer-reviewed) The copyright holder for this preprint The packages dplyr, sf, albersusa, spdep, splm were used for data import, manipulation, analysis and drawing of maps and graphs. Non-parametric analysis was performed using the Wilcoxson test. Chi squared test for trend was done in R. Prevalence ratios and associated measures were calculated using the epiR::epi9.2by2 function. Geospatial interstate queenbased (edge and corner) links were derived with spdep::poly2nb and edited manually as indicated. Geospatial analysis was performed in the package splm using spatial panel maximum likelihood (spml) and spatial panel generalized method of moments (spgm) by Millo and Piras 30 and spatial panel random effects maximum likelihood (spreml) analysis was performed using splm::spreml 31 . The spatial error structure used for spml models was that of Kapoor, Kelejian and Prucha (KKP) 32 . Further details are given in the Tables. spml models were compared using the spatial Hausman test (sphtest) with directionality informed . CC-BY-NC 4.0 International license It is made available under a author/funder, who has granted medRxiv a license to display the preprint in perpetuity.