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. 2002 May;40(5):1715–1718. doi: 10.1128/JCM.40.5.1715-1718.2002

TABLE 1.

 Reliability and predictive values of U2B and IFAT, and concordance with PCR, for HIV-positive patients (n = 61)

Parametera Value for:
U2B IFAT
E. bieneusi E. intestinalis
Sensitivity (%) 100 100
Specificity (%) 98.1 100 100
PPV (%) 88.8 100
NPV (%) 100 100 100
Expected concordance 0.76 0.77
Observed concordance 0.98 1.00
Kappa (95% CI) 0.93 (0.8-1) 1.00
a

PPV, positive predictive value; NPV, negative predictive value; CI, confidence interval.