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Table 3 Sensitivity, specificity, positive predictive value, negative predictive value, and concordance between the agar plate culture and other diagnostic tests used in this study

From: Screening of Strongyloides stercoralis infection in high-risk patients in Khuzestan Province, Southwestern Iran

Diagnostic tests

Sensitivity%

Specificity%

PPV%

NPV%

Concordance

DSE

37.5

100

100

98.3

0.539

FECT

50

100

100

98.6

0.661

BFT

75

100

100

99.3

0.854

ELISA

100

93.8

30.8

100

0.448

  1. DSE direct smear examination, FECT formalin-ether concentration technique, BFT Baermann funnel technique; ELISA enzyme-linked immunosorbent assay, PPV positive predictive value; NPV negative predictive value