Biological age from health records and recovery after cardiothoracic surgery
In 4,313 cardiothoracic-surgery patients at one US hospital, those measured as biologically older before surgery more often died or had adverse outcomes than those measured as biologically younger. This is an association in an abstract, not proof of cause. [1]
Automatic summary · not editorially reviewed
The key findings
Biological aging can be measured from standard clinical laboratory panels. [1]
Patients measured as biologically older before surgery more often died or had adverse outcomes than those measured as biologically younger. [1]
Biological-aging trajectories after surgery were associated with ICU stay length and in-hospital death. [1]
The source at a glance
- Study type / format
- Cohort study (abstract only).
- Population / context
- 4,313 patients who had cardiothoracic surgery at a large hospital in the United States.
- Summary based on
- Study abstract
- Publication status
- Preprint · peer-review status not confirmed
- Original publication
- October 19, 2026
Can routine lab data in health records estimate biological age?
Biological aging means a decline in the body's ability to recover, which raises vulnerability to disease and death as people grow older. The researchers note it can be measured from standard clinical laboratory panels. Whether laboratory data stored in electronic health records (EHRs) are suitable for this is uncertain. The study asked whether such measurement is feasible in hospital care and whether the measured biological aging is linked to patient outcomes.
Supporting source [1]
4,313 cardiothoracic-surgery patients at one US hospital
This was a cohort of 4,313 patients who had cardiothoracic surgery at a large hospital in the United States. The researchers tested whether biological aging measured from EHR laboratory data was associated with patient outcomes. They also looked at biological-aging trajectories after surgery and their link to length of intensive-care-unit (ICU) stays and death in hospital. The abstract does not report how long patients were followed or how the comparison groups were defined.
Supporting source [1]
Older biological age before surgery linked to more deaths
Patients who were measured as biologically older before surgery more often died or had adverse outcomes than those measured as biologically younger. Biological-aging trajectories after surgery were associated with ICU stay length and in-hospital death. The researchers suggest EHR laboratory data could allow biological aging measurement at scale in healthcare systems, with potential for monitoring and risk stratification. These are associations, not causes; the abstract gives no effect sizes, and the full text was not reviewed.
Supporting source [1]
How to interpret this
Abstract only; the full text was not reviewed. The abstract reports no effect sizes, follow-up duration, comparison definitions or adjustment for confounders. Findings are associations, not causes, and come from one US hospital.
Based on the study abstract; the full paper, tables and supplementary data were not reviewed.
Source & supporting passages
Ryan CP, Jung J, Kurlansky PA, Marella W, Wang H, Moitra VK, Belsky DW. · europepmc.org · October 19, 2026