Analyzing the Social Vulnerability Index With Metabolic Surgery

Area of Science:

• Health Services Research
• Surgical Outcomes Research
• Health Disparities

Background:

• The Social Vulnerability Index (SVI) quantifies census tract-level vulnerability using 16 socioeconomic and demographic factors.
• SVI ranges from 1 (least) to 100 (most) vulnerable, offering a population-based measure of marginalization.

Purpose of the Study:

• To explore diverse applications of the SVI in healthcare settings.
• To compare the SVI as a group measure against individual markers of marginalization.
• To determine the association between SVI and the selection of metabolic surgery procedures.

Main Methods:

• Retrospective analysis of adult patients undergoing Roux-en-Y gastric bypass or gastric sleeve surgery (2013-2018).
• Utilized National Surgical Quality Improvement Program data from a single academic center.
• Employed chi-square, Mann-Whitney U tests, and multivariable regression to compare SVI with marginalized status in predicting surgical outcomes.

Main Results:

• A cohort of 436 patients undergoing metabolic surgery exhibited low overall morbidity (6.1%).
• Complication and readmission rates were comparable across different SVI groups.
• Logistic regression models demonstrated similar predictive accuracy, validating SVI as a proxy for individual marginalization measures.

Conclusions:

• The SVI demonstrated equivalent performance to individual marginalization indicators in predicting preoperative risk.
• The SVI is a valid and useful tool for identifying high-risk patients in metabolic surgery.
• Its quantitative score, encompassing social determinants of health, effectively highlights patients with significant health disparities.