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Table 4 Prevalence of microscopic and sub-microscopic Plasmodium falciparum by age group as diagnosed by rapid diagnostic test, blood film (microscopy) and polymerase chain reaction

From: Detection of a substantial number of sub-microscopic Plasmodium falciparum infections by polymerase chain reaction: a potential threat to malaria control and diagnosis in Ethiopia

  Prevalence of microscopic infections (P. f and mixed), n = 1, 453 Prevalence of sub-microscopic infections (P. f & mixed), n = 400
Age group, years Microscopy,% (N) RDT,% (N) PCR*,% (N)
2-5 7.0 (15/214) 12.6 (27/214) 10.2 (5/49)
6-15 3.9 (19/485) 9.1 (44/485) 20.1 (29/144)
16-25 2.7 (9/331) 5.4 (18/331) 20.8 (16/77)
26-35 4.1 (11/268) 4.9 (13/268) 22.7 (20/88)
>35 1.9 (3/155) 1.9 (3/155) 16.7 (7/42)
  1. *are PCR- positive samples that were negative by both microscopy and RDT and it does not include PCR positives that were also positive by microscopy or RDT.