Table 5

Multivariate analysis of the presence of chloroquine in urines of children between two and nine years of age.

Variables
 N
 CQ+*
 Prevalence of CQ † %
 Crude OR
 95%CI
 p‡
 Adjusted OR
 95%CI
 p‡
Age










     2–5 years old
 1419
 691
 49
 1.00


1.00


     6–9 years old
 1633
 571
 35
 0.74
 0.09
 0.63
 0.001
 0.76
 0.64
 0.90
 0.002
Fever during the preceding 3 days










     without
 2252
 852
 38
 1.00


1.00


     with
 800
 410
 51
 1.24
 1.02
 1.50
 0.032
 1.22
 1.01
 1.49
 0.043
Proportion of individuals who were living in an other locality one year before the study











     < 5%
 1424
 471
 33
 1.00


1.00


     >= 5%
 1628
 791
 49
 2.29
 0.97
 5.40
 0.058
 2.53
 1.38
 4.64
 0.003
Score in 2 classes representing the households' average socioeconomic level










     < 6
 2540
 914
 36
 1.00


1.00


     >= 6
 512
 349
 68
 4.73
 1.74
 12.87
 0.002
 2.74
 1.11
 6.78
 0.029
Prevalence rate of the anti-CSP antibodies











     < 20%
 635
 245
 39
 1.00


1.00


     20–39.9%
 1227
 746
 61
 2.82
 1.11
 7.16
 0.0289
 2.47
 1.13
 5.41
 0.023
     >= 40%
 1190
 271
 23
 0.44
 0.17
 1.12
 0.0885
 0.68
 0.32
 1.43
 0.305
Duration of the route to join the nearest tarmacked road










     < 1 hour
 1336
 640
 48
 1.00


1.00


     >= 1 hour
 1716
 622
 36
 0.56
 0.23
 1.37
 0.206
 0.49
 0.27
 0.89
 0.019

*CQ+ = number of samples with chloroquine in urines, † CQ: Chloroquine, ‡ p: p-value

Logistic regression model with random effect taking into account the interdependency of observations made within the same site.

Gardella et al. Malaria Journal 2008 7:124   doi:10.1186/1475-2875-7-124