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Table 1 Variables associated with the history of exposure to malaria parasites in general and to P. falciparum

From: Natural antibody response to Plasmodium falciparum merozoite antigens MSP5, MSP9 and EBA175 is associated to clinical protection in the Brazilian Amazon

Variables Number of individuals (A/S) Range Median in whole sample 25%-75% percentiles whole sample Median from A group 25%-75% percentiles from A group Median from S group 25%-75% percentiles from S group
Age (y) 51 (24/27) 4-84 24 15-40.5 28 16-53 22 13-34
TLEA (y) 51 (24/27) 4-83 22.5 14-40.5 27 15-53 21 13-33
TLSA (y) 51 (24/27) 0-60 10 4.75-23.25 10 4-28 9 5-20
NPEF 47 (23/24) 0-30 4 2-5 4 1-8 3 2-5
NAR 51 (24/27) 0-26 13 7-16 14 6-18 13 7-14
TLSE (y) 48 (24/24) 0-30 1 1-3.5 2 1-14 1 1-1
  1. Shown are the parameters symptomatic (S), asymptomatic (A), year (y), time of living in endemic area (TLEA), time of living in the same address (TLSA), number of previous episodes of falciparum infection (NPEF), number of recombinant antigens recognized (NAR) and time since the last symptomatic episode (TLSE). Note that some information could not be obtained from the participants leading to varying values in column 2.