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Table 4 Distribution of malaria and the diagnostic efficiency of three diagnostic methods (N = 437)

From: Additional burden of asymptomatic and sub-patent malaria infections during low transmission season in forested tribal villages in Chhattisgarh, India

Variable Category Total positivea n (%) No. of cases with the following test results
RDT + Microscopy + PCR+ RDT + Microscopy − PCR+ RDT + Microscopy + PCR− RDT − microscopy + PCR+ RDT − microscopy + PCR− RDT – microscopy − PCR+
Positive cases n 103 (23.6) 35 9 11 1 2 45
Presence of fever Yes 23 (22.4) 5 5 4 1 0 8
No 80 (77.6) 30 4 7 0 2 37
Diagnostic efficiency of three diagnostic methods
Type of diagnostic methods RDT Microscopy PCR
Diagnostic efficiency % (no of positives detected/total positives) 53.3% (55/103) 47.5% (49/103) 87.4% (91/103)
  1. aRDT positive with microscopy and PCR negative were considered as false positive and not included as a malaria positive case