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Table 1 Characteristics of study population: demographic, parasitological, and entomological data

From: Pattern of antibody responses to Plasmodium falciparum antigens in individuals differentially exposed to Anopheles bites

SiteDar-es-SalamPetessouTotalp
Initial cohort
 n99113212
 Thick blood smears
  Negative (%)43 (43.4)52 (46.0)95 (44.8)0.706
  Positive (%)56 (56.6)61 (54.0)117 (55.2)0.811
 Parasite densitya    
  Geometric mean (min–max)3.55 (2.93–4.29)4.58 (3.72–5.64)3.180.079
 Human biting rate (BHN)    
  An. gambiae278***
  Culex s.l.811***
 Study cohortb
  n354176
  Gender ratio (male/female)0.94 (17/18)0.95 (20/21)0.95 (37/39)0.98
  Mean age (years, 95% CI)6.5 (5.4–7.6)7.2 (6.3–8.2)6.9 (5.9–7.9)0.35
 IgG to gSG6-P1c
  Low exposure group0.73 (0.61;0.90)0.97 (0.74;1.08)0.071
  High exposure group1.84 (1.61;2.11)1.45 (1.38;1.62)0.001
  1. n number of children, BHN bites/human/night
  2. aParasite density is expressed as log10 of the number of parasites per µL
  3. bStudy cohort is composed of uninfected children with ΔODgSG6-P1 < 1.15 or ∆ODgSG6-P1 > 1.35
  4. cAnti-gSG6-P1 IgG median value (25th; 75th percentile); ***p < 0.001