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Table 1 Epidemiological characteristics of study participants

From: Evaluating seroprevalence to circumsporozoite protein to estimate exposure to three species of Plasmodium in the Brazilian Amazon

   Malaria diagnosis   
  Positive Negative Total P-value
n = 98 n = 259 n = 357
Gender n (%) Female 30 (19.4) 125 (80.6) 155 (43.4) 0.003
Male 68 (33.7) 134 (66.3) 202 (56.6)
Age (years)   30.2 ± 11.6 30.5 ± 15.5 30.4 ± 14.5 0.862
Time of residence in endemic area   25.6 ± 11.5 24.2 ± 13.1 24.5 ± 12.7 0.352
Previous malaria infection   7.7 ± 12.4 11.7 ± 15.2 10.6 ± 14.5 0.021
Time since last malaria infection   29.7 ± 69.4 41.6 ± 66.7 38.3 ± 67.5 0.137
Previous Plasmodium species
P. vivax   35 (47.3) 71 (32.0) 106 (35.8)  
P. falciparum   1 (1.4) 13 (5.9) 14 (4.7) 0.236
P. vivax/P. falciparum   38 (51.3) 137 (61.6) 175 (59.1)  
Current Plasmodium species
P. vivax   71 (72.5)  
P. falciparum   26 (26.5) < 0.0001
P. vivax/P. falciparum   1 (1.0)  
  1. Gender: n (%); Age: mean ± SD; Time of residence in endemic area (years): mean ± SD; Previous malaria infection: mean ± SD; Time since the last malaria infection (months): mean ± SD; Previous Plasmodium species: n (%); Current Plasmodium species: n (%)