Key result
Directed acyclic graphs map relationships between frailty, multimorbidity, delirium, and postoperative outcomes in older patients.
Why the study?
The SNAP-3 study aims to describe the impact of frailty, multimorbidity, and delirium on postoperative outcomes in older surgical patients and to clarify causal assumptions using directed acyclic graphs.
Population
Older surgical patients in the SNAP-3 cohort
Comparison
Frailty, multimorbidity, and delirium as exposures
Design
Observational cohort study using directed acyclic graphs
Authors
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DAGs may enhance causal modeling of frailty and delirium in surgical cohorts; leaves open the need for empirical validation before clinical application.
Cohort
Directed acyclic graphs provide a transparent framework for statistical decision-making and causal inference in observational research.
Swarbrick et al. (2025) conducted a cohort in Frailty, multimorbidity, and delirium in older surgical patients. Frailty, multimorbidity, and delirium was evaluated on Postoperative outcomes (length of hospital stay, delirium, morbidity, mortality). Directed acyclic graphs were developed to model the exposure-outcome relationships between frailty, multimorbidity, and delirium with postoperative outcomes in older surgical patients.
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