ArticleBMC surgery2026
Body mass index and post-operative outcomes in older adults after major surgery.
Article in BMC surgery, 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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Abstract
backgroundUp to 40% of major elective surgery are performed in older adults. Various frailty assessments have been developed to risk stratify older adults undergoing surgery. However, these are often complex and time-consuming to administer. There is need for a convenient and pragmatic screening tool. We hypothesize that body mass index (BMI) can be used to identify older adults at risk of poorer outcomes following major elective surgery.
methodsWe queried an institutional Perioperative Anaesthesia Subject Area Registry to identify older adults (aged ≥ 65) who underwent major elective surgery between January 2020 and December 2021. A BMI of less than 18.5 kg/m
resultsSix thousand five hundred forty-eight older adults underwent major elective surgery. Mean BMI was 25.8 kg/m
conclusionExtremes of BMI was associated with an overall longer overall LOS in hospital in older adults undergoing major elective surgery. BMI can serve as a supplementary tool to identify at-risk older adults for targeted interventions.
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