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Fig. 2 | BMC Infectious Diseases

Fig. 2

From: Evaluation of the diagnostic accuracy of nonstructural protein 1 Ag-based tests for dengue virus in Asian population: a meta-analysis

Fig. 2

Fagan’s nomogram for the calculation of post-test probabilities. A pre-test probability of 42.9 % for dengue disease was fixed, which was estimated using the number of symptomatic cases in the selected studies. a Platelia had a post-test probability of 99 %. b For Panbio kits, post-test probability was 100 %. c Strip had a post-test probability of 98 %, ie, with an estimated prevalence of 37 %, if this patient tests positive, the post-test probability that he/she truly has dengue would be 98 % (solid line). On the other hand, if patient tests negative, the post-test probability that he/she truly has dengue would be 18 % (a), 25 % (b) or 15 % (c) (dotted line)

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