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Open Access Highly Accessed Research article

The Alvarado score for predicting acute appendicitis: a systematic review

Robert Ohle, Fran O'Reilly, Kirsty K O'Brien, Tom Fahey and Borislav D Dimitrov*

Author Affiliations

HRB Centre for Primary Care Research, Division of Population Health Sciences, Royal College of Surgeons in Ireland, 123 St. Stephen's Green, Dublin 2, Ireland

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BMC Medicine 2011, 9:139  doi:10.1186/1741-7015-9-139

Published: 28 December 2011

Additional files

Additional file 1:

Figure S1. Summary ROC curves (sensitivity and specificity with 95% CIs are presented in Table 2). Figure S2. Predicted versus observed cases with appendicitis per study, sub-grouped by prevalence. The studies were re-grouped into high- or low-prevalence according to the prevalence cut-off point (82%) found in Alvarado's derivation study: A. Low risk, score 1 to 4; B. Intermediate risk, score 5 to 6; C. High risk, score 7 to 10.

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