The Alvarado score for predicting acute appendicitis: a systematic review
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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
BMC Medicine 2011, 9:139 doi:10.1186/1741-7015-9-139Published: 28 December 2011
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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