Key result
The multilevel O-POSSUM model provided higher discrimination for predicting postoperative mortality than P-POSSUM (AUC 79.7% vs 74.3%) and better calibration.
Why the study?
Does the multilevel O-POSSUM model improve risk-adjusted prediction of postoperative mortality in oesophagogastric surgery compared to P-POSSUM?
Population
1042 patients undergoing oesophageal (n = 538) or gastric (n = 504) surgery between 1994 and 2000
Comparison
Multilevel O-POSSUM model and standard logistic… vs P-POSSUM scoring system
Design
Cohort
Follow-up
postoperative
Authors
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Multilevel O-POSSUM accurately predicts oesophagogastric mortality; leaves open external validation before routine perioperative counselling.
Observational (n=1,042)
Does the multilevel O-POSSUM model improve risk-adjusted prediction of postoperative mortality in oesophagogastric surgery compared to P-POSSUM?
Absolute Event Rate: 79.7% vs 74.3%
The multilevel O-POSSUM model provides more accurate risk-adjusted prediction of postoperative mortality for oesophagogastric surgery compared to the P-POSSUM model.
Tekkis et al. (2004) conducted an observational in Oesophageal or gastric surgery (n=1,042). Multilevel O-POSSUM model vs. P-POSSUM and single-level O-POSSUM models was evaluated on Postoperative mortality prediction (discrimination area under ROC curve). The multilevel O-POSSUM model provided higher discrimination for predicting postoperative mortality than P-POSSUM (AUC 79.7% vs 74.3%) and better calibration.
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