Identifying the origin of socioeconomic disparities in outcomes of major elective operations.

BACKGROUND

While the impact of socioeconomic status (SES) on surgical outcomes has been examined in limited series, it remains a significant determinant of healthcare outcomes at the national level. Therefore, the current study aims to determine SES disparities at three time-points: hospital accessibility, in-hospital outcomes, and post-discharge consequences.

METHODS

The Nationwide Readmissions Database 2010-2018 was used to isolate major elective operations. SES was assigned using previously coded median income quartiles as defined by patient zip-code, with defined as the lowest quartile and as the highest.

RESULTS

Of an estimated 4,816,837 patients undergoing major elective operations, 1,037,689 (21.3 %) were categorized as and 1,288,618 (26.5 %) as . On univariate analysis and compared to those of patients were more frequently treated at high-volume centers (70.9 vs 55.6 %, p < 0.001), had lower rates of in-hospital complications (24.0 vs 29.0 %, p < 0.001) and mortality (0.4 vs 0.9 %, p < 0.001) as well as less frequent urgent readmissions at 30- (5.7 vs 7.1 %, p < 0.001) and 90-day timepoints (9.4 vs 10.7 %, p < 0.001). On multivariable analysis, patients had higher odds of treatment at high-volume centers (Odds: 1.87, 95 % CI: 1.71-2.06), and lower odds of perioperative complications (Odds: 0.98, 95 % CI: 0.96-0.99), mortality (Odds: 0.70, 95 % CI: 0.65-0.75), and urgent readmissions at 90-days (Odds: 0.95, 95 % CI: 0.92-0.98).

CONCLUSION

This study fills a much-needed gap in the current literature by establishing that all of the aforementioned timepoints include significant disadvantages for those of low socioeconomic status. Therefore, a multidisciplinary approach may be required for intervention to improve equity for surgical patients.