Rattan R, et al. - Researchers performed a comparison of risk factors and costs associated with readmission after firearm injury nationally, including different hospitals. They noted that a significant proportion of the national burden of firearm readmissions is missed by not tracking different hospital readmission and its unique set of risk factors. Predictors for readmission were: length of stay >7 days, Injury Severity Score >15, and requiring an operation. Private insurance was a predictor against readmission. Readmission to a different hospital could be predicted via unique factors, including initial admission to a for-profit hospital and median household income ≥$64,000. The cost of firearm injury-related hospitalization is estimated to be $791 million yearly, with the largest fraction paid by the public.