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. 2015 Nov 10;8:584. doi: 10.1186/s13071-015-1165-y

Table 1.

Reagent strip test performance in the three study sites

Study TP FP FN TN Egg positive Microhaematuria Sensitivity Specificity PPV NPV
Côte d’Ivoire, Tchologo 11 145 7 638 2.2 % 19.5 % 61.1 % 81.5 % 7.1 % 98.9 %
Chad, baseline survey 22 56 7 284 7.9 % 21.1 % 75.9 % 83.5 % 28.2 % 97.6 %
Chad, first follow-up survey 4 24 2 190 2.7 % 12.7 % 66.7 % 88.8 % 14.3 % 99.0 %
Chad, second follow-up survey 1 7 1 68 2.6 % 10.4 % 50.0 % 90.7 % 12.5 % 98.6 %
Côte d’Ivoire, Grand Moutcho 86 2 12 24 79.0 % 71.0 % 87.8 % 92.3 % 97.7 % 66.7 %

FN false negative (negative with reagent strip, positive with filtration), FP false positive (positive with reagent strip, negative with filtration), NPV negative predictive value, PPV positive predictive value, TN true negative (negative with both, reagent strip and filtration), TP true positive (positive with reagent strip and filtration)