We estimated the importance of each predictor variable with SHAP values and found the top three predictors of death any time after COVID-19 presentation in the LatAm cohort were older age, higher WBC counts historically (i.e. > 14 days prior to COVID-19 presentation), and lower albumin levels historically; in North America, the top three predictors included older age, lower albumin levels historically, and longer dialysis vintage. This evidence concerns the gene ALB and COVID-19.