Social determinants of health and outcomes of ventral hernia repair in a safety-net hospital setting

Purpose: Lower socioeconomic status has been shown to be predictive of poorer surgical outcomes in ventral hernia repair. Recently, safety-net hospitals have been attempting to address these disparities to improve the care of patients of lower socioeconomic status. Methods: A query of all patients undergoing ventral hernia repair at our institution between 2010 and 2019 was completed (n = 580). Patients not from identifiable New Jersey ZIP-codes were excluded (n = 572). ZIP codes were assigned quartiles based off socioeconomic variables including median household income, percent below poverty line, and high school graduation rate. Patients were then assigned to socioeconomic status quartiles based off their residential ZIP-code. Outcomes of ventral hernia surgery were compared across ZIP-code quartiles. Logistic regression was used to analyze predictors of poor outcomes. Results: Patients from lower socioeconomic brackets were more likely to be younger (p < 0.001), female (p = 0.014), black (p < 0.001), and/or Hispanic (p = 0.003). Most notably, outcomes of ventral hernia were not significantly different between patients of different socioeconomic status ZIP-code quartiles. The risk of any post-operative morbidity was higher for longer procedures (p < 0.001) and for hernia repairs being done with other procedures (p < 0.001). Risk of prolonged length of stay and related 30-day readmission was higher with longer procedures (p < 0.001 and p = 0.003, respectively). Conclusion: We found that outcomes of ventral hernia repair at a safety-net hospital were unaffected by socioeconomic status. This supports the important role that safety-net institutions play in providing quality care to their vulnerable populations. Future studies at other safety-net hospitals should be done to further assess the updated impact of socioeconomic status on ventral hernia outcomes.