Table 1.
Characteristics of the study subjects.
Figure 1.
Relationships of antibody levels and avidities with age.
Antibody levels and avidity indices for each antigen are plotted against age. Linear regression lines are shown, as are the associated R squared and P values.
Figure 2.
Antibody levels but not avidities were elevated in the presence of asymptomatic parasitaemia.
Antibody levels (top panel) and avidities (lower panel) for children with (open symbols) and without (filled symbols) asymptomatic P. falciparum parasitaemia as determined by use of blood-films at sampling. Horizontal bars are medians. Statistical significance of differences was determined by Wilcoxon rank-sum test.
Table 2.
Multivariable analysis of association between EI, age and cross sectional parasitaemia with antibody levels and avidities.
Figure 3.
Comparisons of antibody avidities to AMA1, MSP1 and tetanus toxoid (TT).
Children, rural-adults and urban-adults are represented by filled, half-filled and open symbols, respectively. Solid lines represents medians. Statistical significance between pairs of groups was determined with the Kruskal-Wallis test (* P<0.05, ** P<0.01, *** P<0.001).
Table 3.
Prospective association between antibody levels and avidities at baseline with the risk of malaria during 10-months follow up.