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Table 4 Cross tabulation of US and histology results, specificity and sensitivity of ultrasound

From: Validation of the modified Alvarado score on patients attending A&E units with suspected appendicitis

 

Histology result

Total

0.00

1.00

US result

0.0

Count

80

8

88

% within Histology

87.0%

17.4%

63.8%

1.0

Count

12

38

50

% within Histology

13.0%

82.6%

36.2%

Total

Count

92

46

138

% within Histology

100.0%

100.0%

100.0%