Evidence map›Paper›PMID 42151465›Full record

ArticleSurgical endoscopy2026

Impact of beneficiary status on bariatric surgery outcomes in a military treatment facility.

Michael T Olson, Yun Beom Lee, Pamela Masella, Brian D Layton

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Article in Surgical endoscopy, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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1 · What the graph read from it

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2 · The registry

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3 · Its place in the literature

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4 · The record

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5 · Who and what money

Authors and funding

4 authors.

Michael T OlsonDepartment of General Surgery, Brooke Army Medical Center, 3551 Roger Brooke Drive, San Antonio, TX, USA.ORCID http://orcid.org/0000-0001-8865-0267
Yun Beom LeeDepartment of General Surgery, Brooke Army Medical Center, 3551 Roger Brooke Drive, San Antonio, TX, USA.
Pamela MasellaDepartment of General Surgery, Brooke Army Medical Center, 3551 Roger Brooke Drive, San Antonio, TX, USA.
Brian D LaytonDepartment of General Surgery, Brooke Army Medical Center, 3551 Roger Brooke Drive, San Antonio, TX, USA. brian.d.layton4.mil@health.mil.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundRetirees and dependents represent demographically and clinically distinct beneficiary groups within the Military Health System (MHS). We assessed whether beneficiary status influences perioperative outcomes, healthcare utilization, and weight loss after bariatric surgery.

methodsWe conducted a retrospective cohort study of adults undergoing sleeve gastrectomy or Roux-en-Y gastric bypass from 01/01/2022 to 12/31/2024 at a single military treatment facility. Outcomes were stratified by beneficiary status (retiree versus dependent). Propensity scores incorporating demographic, clinical, and procedural factors were used to construct overlap weights, yielding covariate balance comparable to randomized allocation. Overlap-weighted logistic and linear regression models assessed the independent association between beneficiary status and postoperative outcomes. Sex interaction terms evaluated effect modification. A female-only 1:1 propensity score-matched analysis served as a sensitivity analysis to address marked sex imbalance between groups.

resultsAmong 281 patients, 123 (43.8%) were retirees and 158 (56.2%) dependents. Retirees were older (median 50 versus 46 years, p = 0.003), predominantly male (52% versus 7%, p < 0.001), higher frequency Black (12.2% versus 5.1%, p = 0.052) and Hispanic (22.8% versus 11.4%, p = 0.017) and had higher comorbidity burden (median count 5.0 versus 4.0, p < 0.001). Revision/conversion procedures were less common in retirees; otherwise, operative indices were comparable. In unadjusted analyses, retirees had shorter hospital length of stay (LOS), fewer all-cause ED visits at 30 days, and fewer surgical ED visits through 12 months. However, in weighted regression, beneficiary status was not independently associated with LOS, ED visits, readmissions, or short-term percent total weight loss. No significant sex-beneficiary status interaction was observed. In the female-only matched cohort (N = 114; 57 pairs), outcomes again remained comparable.

conclusionsAfter covariate adjustment using overlap weighting and sex-restricted propensity matching, beneficiary status was not independently associated with LOS, postoperative healthcare utilization, or short-term weight loss. These findings suggest equitable bariatric outcomes across MHS beneficiary groups.

Indexed as

Bariatric SurgeryObesity, MorbidAdultFemaleGastrectomyGastric BypassHumansLength of StayMaleMiddle AgedPostoperative ComplicationsRetrospective StudiesTreatment OutcomeWeight LossBariatric surgeryBeneficiaryDependentHealthcare utilizationRetiree

Identifiers

PMID42151465
PMCPMC13246537

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.