Critical care science
Institutional volume and postoperative efficiency as determinants of in-hospital mortality after coronary artery bypass grafting: a multilevel analysis in São Paulo, Brazil
Par Martins GK, Reis MEDS, Brito EMS et 3 autres.
Contenu en anglais
Résumé
Objective
To evaluate the association between hospital procedural volume, postoperative efficiency, and in-hospital mortality and costs among patients undergoing coronary artery bypass grafting in the public health system of the State of São Paulo, Brazil.
Methods
This retrospective ecological study analyzed isolated coronary artery bypass grafting procedures recorded in the Brazilian Hospital Information System in São Paulo between 2008 and 2024. Outcomes included in-hospital mortality, postoperative length of stay, and inflation-adjusted hospitalization costs. We assessed mortality using Poisson regression models, while we analyzed costs and length of stay using linear mixed-effects models with hospital-level random intercepts. We performed sensitivity analyses using alternative inclusion criteria.