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Table 3 Detection of dengue and chikungunya by RDT and ELISA in the 293 subjects for whom sufficient plasma was available

From: Dengue, chikungunya, and scrub typhus are important etiologies of non-malarial febrile illness in Rourkela, Odisha, India

Antigen Type of test Manufacturer (no. of patients tested) Positive cases % Positivity Concordance between tests
Dengue NS1 (n = 293) RDT J. Mitra (n = 290) 39 13.4 NS1 RDT:
J. Mitra vs. SD Bioline: 100% same results, n = 101
SD Bioline (n = 101) 13 12.9
ELISA Panbio (n = 288) 41 14.2 J. Mitra RDT vs. Panbio ELISA (NS1):
McNemar test, n = 285, exact p-value 0.688
Dengue IgM (n = 293) RDT J. Mitra (n = 290) 16 5.5 IgM RDT:
J. Mitra vs. SD Bioline: McNemar test, N = 101, exact p-value 0.625
SD Bioline (n = 101) 1 1
ELISA Panbio (n = 288) 35 12.2 J. Mitra RDT vs. Panbio ELISA (NS1):
McNemar test, n = 285, exact p-value 0.688
Dengue IgG (n = 290) RDT J. Mitra (n = 290) 8 2.8 IgG RDT:
J. Mitra vs. SD Bioline: 100% same results, n = 101
SD Bioline (n = 101) 2 2
Dengue NS1 or Dengue IgG or Dengue IgM RDT or ELISA J. Mitra or SD Bioline or Panbio (n = 293) 74 25.3 Not applicable
chikungunya IgM (n = 293) RDT J. Mitra (n = 288) 8 2.8 IgM RDT:
J. Mitra vs. SD Bioline: McNemar test, n = 100, exact p-value 0.250
SD Bioline (n = 102) 0 0
ELISA Panbio (n = 288) 15 5.2 J. Mitra RDT vs. Panbio IgM ELISA:
McNemar test, n = 283, exact p-value 0.022
RDT or ELISA J. Mitra or SD Bioline or Panbio (n = 293) 17 5.8 Not applicable