Variations in weight loss and glycemic outcomes after sleeve gastrectomy by race and ethnicity
Authors' conclusion
NHB participants experienced less favorable outcomes following SG, emphasizing the need for tailored interventions addressing socioeconomic and psychosocial disparities.
Study context
- Population
- Patients who underwent sleeve gastrectomy (SG) between 2017 and 2020, follow-up over 24 months
- Exposure
- Non-Hispanic Black (NHB) vs H vs non-Hispanic White (NHW) participants after SG
- Outcome
- %TWL and glycemic improvement after SG by race and ethnicity
Main finding
As reported in the abstract
%TWL · 3, 12 and 24 months
- NHB had lower %TWL at 3, 12 and 24 months vs H and NHW
- HbA1c decreased across all groups but remained consistently higher in NHB and H vs NHW at 24 months
Observational data: associations, not effects.
Further findings
Fat mass index · 24 months
- Fat mass index initially lower in NHB, with smaller reductions over time; significant group differences persisted at 24 months
Fat-free mass index · baseline and 24 months
- NHB had higher baseline fat-free mass index; by 24 months values were lower in H
Psychosocial factors · all time points
- NHB reported higher perceived discrimination, sleep disturbance and perceived stress than H and NHW
Employment status and %TWL · 12 and 24 months
- Employment status predicted %TWL at 12 months
- Significant interaction between race and ethnicity and employment status at 12 and 24 months
Original publication
Variations in weight loss and glycemic outcomes after sleeve gastrectomy by race and ethnicity. Obesity (Silver Spring). Published 16 June 2025. doi:10.
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