High metabolic inflammation trajectories predict faster frailty progression in older adults
Tracking the combined C-reactive protein-triglyceride-glucose index over time identified older adults at greater risk of incident frailty in two national cohorts.
Maturitas · Liu ZY et al. · Paper published 25 Sep 2026
Researchers analyzed prospective data from 3,947 Chinese and 1,431 English middle-aged and older adults to examine how combined metabolic and inflammatory burdens affect frailty. The team tracked longitudinal trajectories of the C-reactive protein-triglyceride-glucose index and grouped participants into low, moderate, and high categories using k-means clustering. Frailty was evaluated over time using a 31-item index. Compared with the consistently low group, adults in the high trajectory group exhibited worse frailty scores at baseline. Over follow-up, the high trajectory group faced an increased risk of incident frailty, with hazard ratios of 1.24 in the Chinese cohort and 1.42 in the English cohort. Linear mixed-effects modeling confirmed that participants in the high-trajectory group accumulated deficits significantly faster over time, an effect that remained robust across body mass index categories.
Why it matters
Combining markers of systemic inflammation and cardiometabolic dysregulation provides a practical, dynamic indicator of accelerated biological aging. Monitoring these trajectories could help clinicians identify individuals at high risk for physical deficit accumulation.
Caveats
The findings are based on observational cohort data, which cannot establish a direct causal link between biomarker trajectories and frailty.
Written from the paper’s abstract, and every claim checked against it before publishing. Read the paper for the full methods and data.
The paper
Longitudinal trajectories of the C-reactive protein-triglyceride-glucose index and frailty progression in two nationwide prospective cohorts
Liu ZY, Sun CL
Maturitas · 25 Sep 2026 · Peer-reviewed
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