Table 2.

Sensitivity, specificity, accuracy, predictive values and likelihood ratio values of the commercial dengue NS1 capture assay used for dengue diagnosis.

Statistics* (Platelia Dengue NS1 Ag ELISA)	(%)
Sensitivity (63/79)	79.74
Specificity (147/148)	99.32
Accuracy (210/227)	92.51
Positive Predictive Value (63/64)	98.43
Negative Predictive Value (147/163)	90.18
Likelihood Ratio of a Negative Test Result	0,21
Likelihood Ratio of a Positive Test Result	79

*Sensitivity (a/a + b), specificity (d/c + d), accuracy (a + d/a + b + c + d), positive predictive value (a/a + c), negative predictive value (d/b + d), likelihood ratio of a negative test result (sensitivity/1-specificity) and likelihood ratio of a positive test result (1-sensitivity/specificity), where a = true positive (n = 63), b = false negative (n = 16), c = false positive (n = 1) and d = true negative (n = 147).