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Table 2 Correlation between histological finding of appendix and risk stratification of Alvarado score

From: Predictive values of Alvarado score, serum C-reactive protein, and white blood cell count in the diagnosis of acute appendicitis: a prospective study

Alvarado score Histological finding of appendix
Positive for acute appendicitis Negative for acute appendicitis
Low risk (1–4) 0 3
Intermediate risk (5–6) 11 9
High risk (7–10) 70 7