Comparing Race/Ethnicity and Zip Code Socioeconomic Status for Surgical versus Nonsurgical Management of Proximal Humerus Fractures in a Medicare Population

This study evaluated the effect of race/ethnicity and socioeconomic status (SES) on surgical utilization after proximal humerus fractures in a large Medicare cohort. METHODS: The PearlDiver Medicare claims database was used to identify patients aged 65years and older with isolated, closed proximal humerus fractures, for whom race/ethnicity data were available (65.5% of identified fractures). Patients with polytrauma or neoplasm were excluded. Patient demographic, race/ethnicity, comorbidity, and median household income were compared for surgical versus nonsurgical management. Univariate and multivariable logistic regressions were used to determine disparities of surgical utilization based on the abovementioned factors. RESULTS: Of 133,218 patients with proximal humerus fracture identified, surgery was conducted for 4446 (3.3%). Those less likely to receive surgery were older (incrementally by increasing age bracket up to 85 years and older odds ratio [OR], 0.16, P < 0.001), male (OR, 0.79, P < 0.001), Black (OR, 0.51, P < 0.001) or Hispanic (0.61, P = 0.005), higher Elixhauser Comorbidity Index (per 2 increase OR, 0.86, P < 0.001), and low median household income (OR, 0.79, P < 0.001). CONCLUSIONS: The independent significance of race/ethnicity and SES point to disparities in surgical decision making/access to care. These findings highlight the need for increased attention on initiatives and policies that seek to eliminate racial disparities and improve health equity independent of SES.