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Derivation and Validation of the Extended Care (Ex-Care) Model II — Ex-CareII  

Postoperative Complications Clinical Trial

Official title:
Derivation and Validation of a National Multicenter In-hospital Mortality Risk Stratification Model - the Ex-Care Model II

Clinical Trial Summary

The goal of this study is to develop a novel surgical risk stratification tool designed to adults operated in Brazil. The main question it aims to answer is: •Is the Extended Care (Ex-Care) II model a good tool to assess the risk of death among patients operated in Brazilian hospitals within 30 days after surgery? Information of patients undergoing surgery in the participating hospitals over a period of 24 months will be analyzed to evaluate the relationship of some patients characteristics (called predictors) with the study outcome (probability of death). The sample will be divided in two groups. The first, called derivation sample, will be used for the development of the Ex-Care II model. The second, called validation sample, will evaluate the performance of this new model.

Clinical Trial Description

From four predictors collected preoperatively ( American Society of Anesthesiology Physical Status (ASA-PS) classification, age, extent of surgery and its nature - elective vs urgency/emergency), through a multilevel logistic regression, a post-surgical in-hospital mortality prediction model will be developed, the Ex-Care II model. Discrimination and calibration measures will be used to determine the accuracy of the model. In addition, each predictor will have their odds ratio calculated for the study outcome. Once this model is developed, it will have its external validity tested in a second sample, using the same accuracy metrics. ;

Study Design

Related Conditions & MeSH terms

Clinical Trial Details
NCT number NCT05796024
Study type Observational
Source Hospital de Clinicas de Porto Alegre
Contact
Status Active, not recruiting
Phase
Start date January 2, 2019
Completion date November 30, 2023
View Details
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