Singh JA, et al. - This study was undertaken to investigate whether and how insurance and patient income were independently associated with total shoulder arthroplasty (TSA) outcomes. The 1998–2014 US National Inpatient Sample was applied. A multivariable-adjusted logistic regression was applied to evaluate if insurance type and the patient’s median household income (based on postal code) were independently correlated with healthcare use (discharge destination, hospital stay duration, total hospital charges) and in-hospital complications post-TSA based on the diagnostic codes (fracture, infection, transfusion, or revision surgery). The OR and 95% CI were estimated. In this study, the mean age was 68.6 years, 54% were female, and 73% white among the 349,046 projected TSA hospitalizations. The results considered that this information can assist to risk-stratify patients post-TSA. Further evaluations of modifiable mediators of these complications are required.