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Table 3 Chloroquine prevalence in urines of children between two and nine years of age according to children characteristics.

From: Antimalarial drug use in general populations of tropical Africa

Variables   N* CQ+† Prevalence of
presence of CQ‡ %
crude OR 95%CI p
Sex Male 1524 618 41 1.00    
  Female 1528 644 42 1.07 0.90 1.26 0.458
Age 2–5 years old 1419 691 49 1.00    
  6–9 years old 1633 571 35 0.74 0.63 0.89 0.001
Fever during the preceeding 3 days without 2252 852 38 1.00    
  with 800 410 51 1.24 1.02 1.50 0.032
Antimalarial treatment during the preceding 7 days no 2652 995 38 1.00    
  yes 400 267 67 1.90 1.46 2.47 0.000
Travel during the preceding 30 days no 2930 1203 41 1.00    
  yes 122 59 48 1.52 1.00 2.30 0.048
Malaria infection no 974 466 48 1.00    
  yes 1939 718 37 0.60 0.49 0.74 0.000
Asexual Plasmodium falciparum infections no 1094 518 47 1.00    
  yes 1819 666 37 0.61 0.50 0.75 0.000
  1. *N number of samples of urine, † CQ+ = number of samples with chloroquine in urines, ‡ CQ: Chloroquine.
  2. Logistic regression model with random effect taking into account the interdependency of observations made within the same site.