Combination of APACHE-II score and an obesity score (APACHE-O) for the prediction of severe acute pancreatitis

Johnson, C.D., Toh, S.K. and Campbell, M.J. (2004) Combination of APACHE-II score and an obesity score (APACHE-O) for the prediction of severe acute pancreatitis. Pancreatology, 4, (1), 1-6. (doi:10.1159/000077021).


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The advent of specific therapeutic or preventive treatments for severe acute pancreatitis creates a need to determine the risk of complications for each individual. Scoring systems used in acute pancreatitis identify groups of patients at risk of complications, but the pancreatitis-specific scores require 48 h of hospital admission to give full information. The APACHE-II score is useful within 24 h, but ignores simple clinical features, such as obesity, known to predict severity. The aim of this study was to evaluate a combination of the APACHE-II score with an obesity score in patients with acute pancreatitis, to predict severity using information available during the first 24 h of hospital admission.

Data were collected prospectively from 186 consecutive patients with acute pancreatitis, to allow calculation of the APACHE-II score and body mass index (BMI). BMI was categorised as normal (score = 0), overweight (BMI 26-30: score = 1), or obese (BMI >30: score = 2). A logistic regression model was used to identify factors significantly associated with complications (Atlanta criteria; 104 complications in 60 patients).

Age, BMI and the acute physiology score independently predicted complications. Addition of the score for obesity to the APACHE-II score gave a composite score (APACHE-O) with greater predictive accuracy. At cut-off of >8, APACHE-O had sensitivity 82%, specificity 86%, positive predictive value 74%, negative predictive value 91% and overall accuracy 85%.

This study confirms that age, obesity and APACHE-II measured in the first 24 h of hospital admission can predict complications in acute pancreatitis. Combination of the APACHE-II and obesity scores by simple addition improved categorical prediction of severity (mild or severe) in patients with acute pancreatitis.

Item Type: Article
Digital Object Identifier (DOI): doi:10.1159/000077021
ISSNs: 1424-3903 (print)
Related URLs:
Keywords: apache scores, pancreatitis, obesity, body mass index
Subjects: R Medicine > RC Internal medicine > RC0254 Neoplasms. Tumors. Oncology (including Cancer)
R Medicine > RA Public aspects of medicine > RA0421 Public health. Hygiene. Preventive Medicine
Q Science > QP Physiology
Divisions : University Structure - Pre August 2011 > School of Medicine > Cancer Sciences
ePrint ID: 26406
Accepted Date and Publication Date:
Date Deposited: 24 Apr 2006
Last Modified: 31 Mar 2016 11:49

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