Figure 2

Pair-wise comparison of anti- Pf AMA1 antibody titres against different capture antigens/mixtures. Tukey Mean-Difference (TMD) plots were used to assess the level of agreement between antibody titres measured against pairs of capture antigens/mixtures. Each point represents a plot of the difference between two log-transformed titre measurements for a sample against the geometric mean of the same two measurements. For each panel, the bold horizontal line represents the average of all the differences between titres of the same samples against the indicated capture antigen/antigen mixture pair while the dotted horizontal lines represent the 95% limits of agreement for the distribution. Plot symbols represent individual data points; red filled circles are study participants aged 3 - 5 years, black filled squares are participants between 6 - 10 years and blue open triangles are participants between 11 - 15 years.