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. 2019 Apr 9;43(3):426–442. doi: 10.1007/s12639-019-01107-5

Table 4.

Sensitivity and specificity of Diagnostic techniques

Microscopy Total number
Positive Negative
ELISA (reference method) Positive 258 (TP) 06 (FN) 264 TInfected
Negative 00 (FP) 904 (TN) 904 TUninfected
Total Number 258 TTest Positive 910 TTest Negative 1168 Total Number
Sensitivity (%) [95% CI]

97.73%

95.12–99.16%

Specificity (%) [95% CI] 100.00% (99.59–100.00%)
Negative predictive value (%) [95% CI] 99.34% 98.56–99.70%
Positive predictive value (%) [95% CI] 100.00%

TP positive in both microscopy and ELISA; FP positive in microscopy but not in ELISA; FN negative in microscopy but positive in ELISA; TN negative in both ELISA and microscopy