- Design
- Retrospective propensity-matched new-user cohort (TriNetX)
- Population
- 87,860 adults ≥65 with MASLD (43,930 per group)
- Primary outcome
- Hepatic decompensation, hospitalisation, mortality, MACE
- Effect
- Decompensation HR 0.72 (0.66 to 0.79); mortality HR 0.55 (0.52 to 0.58); MACE HR 0.98 (0.92 to 1.04)
A US TriNetX cohort matched 43,930 adults aged 65 and over with metabolic dysfunction-associated steatotic liver disease who started a GLP-1 receptor agonist with the same number who did not (mean age 72).
Over up to ten years, GLP-1 agonist use was associated with less hepatic decompensation (HR 0.72, 95% CI 0.66 to 0.79), fewer hospitalisations (HR 0.95) and lower mortality (HR 0.55). Major cardiovascular events did not differ (HR 0.98). Osteoporosis and retinopathy were recorded more often; sarcopenia, fracture and pancreatitis did not differ.
The mortality association is too large to attribute to the drug alone — people started on new treatments tend to be healthier or better followed. For a geriatrician, the useful signals are the liver association and the reminder to watch bone and muscle in older patients losing weight.
- Consider GLP-1 agonists for older adults with MASLD who also have diabetes or obesity indications.
- Monitor weight loss, muscle strength and bone health during treatment.
- Combine with resistance exercise and adequate protein.
- Check for retinopathy in patients with diabetes starting treatment.
Why it matters
Use of these drugs is rising in older adults, and their risks for bone and muscle need weighing against liver benefit.
Don't overread it
Observational database study; the mortality association in particular is likely inflated by confounding.
The statistics, in plain English
A mortality hazard ratio of 0.55 — nearly halving deaths — is implausibly large for this drug class and suggests healthy-user bias. The null MACE result is a useful check against over-interpretation.
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