Table 2.

Sensitivity, specificity, NPV, and PPV of LAMP compared with those of microscopy, a gold standard, for malaria parasite detection and species identification, Thailand^*

LAMP
Variable	No. positive/no. tested (%)
Sensitivity	59/60 (98.3)
Specificity	50/50 (100)
NPV	50/51 (98)
PPV	59/59 (100)

^*NPV = negative predictive value; PPV = positive predictive value; LAMP = loop-mediated isothermal amplification. Sensitivity = (no. true positive results)/(no. true positive results plus no. false-negatives results); Specificity = (no. true negative results)/(no. true negative results plus number of false-positive results); NPV = no. true negative results/(no. true negative results plus no. false-negative results); PPV = no. true positive results/(no. true positive results plus no. false-positive results).