From: Predictive values of Alvarado score, serum C-reactive protein, and white blood cell count in the diagnosis of acute appendicitis: a prospective study
Histopathology
Alvarado score
Acute appendicitis
Non-acute appendicitis
≥ 7
70
7
77
< 7
11
12
23
Total
81
19
100
CRP
≥ 10 mg
80
92
< 10 mg
1
8
WBC count
11,000/cm3
42
2
44
39
17
56