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. 2010 Feb 5;82(2):251–256. doi: 10.4269/ajtmh.2010.09-0366

Table 2.

Measures of diagnostic performance

IFAT ProtA IgG2 IgG1 IgG IgA IgM LPA qPCR-Blood qPCR-BM
Sensitivity 0.63 0.72 0.65 0.34 0.47 0.3 0.23 0.6 0.5 0.58
95% CI 0.43, 0.79 0.57, 0.83 0.52, 0.77 0.19, 0.53 0.32, 0.63 0.15, 0.5 0.1, 0.46 0.49, 0.71 0.36, 0.64 0.34, 0.79
Specificity 0.82 0.78 0.99 0.99 0.98 0.99 0.99 0.56 0.99 0.98
95% CI 0.56, 0.94 0.52, 0.92 0.88, 1 0.88, 1 0.86, 1 0.88, 1 0.88, 1 0.35, 0.75 0.88, 1 0.83, 1
Accuracy 0.68 0.73 0.76 0.54 0.62 0.52 0.47 0.59 0.65 0.78
95% CI 0.56, 0.8 0.63, 0.83 0.68, 0.84 0.45, 0.63 0.53, 0.71 0.43, 0.61 0.38, 0.57 0.5, 0.68 0.56, 0.73 0.67, 0.89
PPV 0.89 0.91 0.99 0.98 0.99 0.98 0.97 0.75 0.99 0.97
95% CI 0.78, 1.01 0.84, 0.99 0.96, 1.02 0.93, 1.03 0.95, 1.02 0.92, 1.04 0.9, 1.05 0.64, 0.85 0.96, 1.02 0.88, 1.06
NPV 0.48 0.45 0.57 0.41 0.42 0.4 0.38 0.39 0.46 0.7
95% CI 0.3, 0.66 0.28, 0.63 0.45, 0.69 0.31, 0.51 0.31, 0.54 0.3, 0.5 0.28, 0.47 0.26, 0.53 0.35, 0.57 0.55, 0.85
LR+ 3.54 3.23 48.24 24.82 29.43 22.01 17.33 1.36 37 29
95% CI 1.23, 10.17 1.34, 7.77 3.06, 760.5 1.55, 396.34 1.86, 464.62 1.37, 352.65 1.07, 279.83 0.9, 2.04 2.34, 585.33 1.83, 460.12
LR− 0.46 0.36 0.35 0.67 0.53 0.71 0.78 0.72 0.51 0.43
95% CI 0.29, 0.72 0.23, 0.58 0.26, 0.48 0.57, 0.79 0.43, 0.66 0.61, 0.83 0.68, 0.88 0.48, 1.07 0.41, 0.63 0.27, 0.68
DOR 7.78 8.85 136.71 36.85 55.12 30.91 22.32 1.9 73 67.67
95% CI 4.03, 15.01 3.64, 21.55 66.6, 280.64 17.94, 75.68 26.85, 113.1 15.02, 63.6 10.8, 46.14 0.33, 11.01 35.71, 149.2 31.18, 146.8
Youden's 0.45 0.49 0.64 0.32 0.46 0.28 0.22 0.16 0.49 0.56