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Table 5 The sensitivity, specificity, PPV, and NPV of titers of anti TO (≥1:80) and anti TH (≥1:160) Widal tests for diagnosis of typhoid fever from febrile patients in St. Paul’s hospital

From: A comparative study of Widal test with blood culture in the diagnosis of typhoid fever in febrile patients

Measurement

O antigen (%)

H antigen (%)

Sensitivity

71.4

28.57

Specificity

74.1

86.3

PPV

6.8

5.2

NPV

98.9

97.8

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BMC Research Notes

ISSN: 1756-0500

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