Table 4. Pearson product-moment correlation coefficient (r) between results obtained for recombinant proteins vs. TLA results for different patient groups.
ELISA test | GROUP | SAG2-GRA1-ROP1 | SAG2-GRA1-ROP1-AMA1N | AMA1N-SAG2-GRA1-ROP1 | AMA1C-SAG2-GRA1-ROP1 | AMA1-SAG2-GRA1-ROP1 | |||||
---|---|---|---|---|---|---|---|---|---|---|---|
r | p value | r | p value | r | p value | r | p value | r | p value | ||
IgM | I | 0.532 | <0.001 | 0.654 | <0.001 | 0.686 | <0.001 | 0.624 | <0.001 | 0.615 | <0.001 |
II | 0.668 | 0.002 | 0.900 | <0.001 | 0.614 | 0.007 | 0.689 | 0.002 | 0.668 | 0.002 | |
III | 0.394 | 0.002 | 0.422 | <0.001 | 0.515 | <0.001 | 0.461 | <0.001 | 0.329 | 0.012 | |
IV | 0.714 | <0.001 | 0.686 | <0.001 | 0.551 | <0.001 | 0.617 | <0.001 | 0.753 | <0.001 | |
All | 0.774 | <0.001 | 0.774 | <0.001 | 0.827 | <0.001 | 0.790 | <0.001 | 0.764 | <0.001 | |
IgG | I | 0.879 | <0.001 | 0.796 | <0.001 | 0.823 | <0.001 | 0.915 | <0.001 | 0.816 | <0.001 |
IIA | 0.594 | <0.001 | 0.795 | <0.001 | 0.627 | <0.001 | 0.624 | <0.001 | 0.731 | <0.001 | |
IIB | 0.746 | <0.001 | 0.830 | <0.001 | 0.749 | <0.001 | 0.757 | <0.001 | 0.828 | <0.001 | |
IIC | 0.722 | <0.001 | 0.762 | <0.001 | 0.608 | <0.001 | 0.582 | <0.001 | 0.784 | <0.001 | |
IIA-C | 0.854 | <0.001 | 0.901 | <0.001 | 0.813 | <0.001 | 0.793 | <0.001 | 0.895 | <0.001 | |
III | 0.396 | <0.001 | 0.467 | <0.001 | 0.637 | <0.001 | 0.443 | <0.001 | 0.578 | <0.001 | |
All | 0.838 | <0.001 | 0.921 | <0.001 | 0.863 | <0.001 | 0.887 | <0.001 | 0.902 | <0.001 |
Serum groups used in IgM ELISA test: I–suspected acute phase of T. gondii infection (IgM +; IgG +; low avidity), n = 48. II–chronic T. gondii infection with presence of IgM antibodies (IgM +; IgG +; high avidity), n = 18. III–chronic T. gondii infection with absence of IgM antibodies (IgM–; IgG+; high avidity), n = 58. IV–control group (IgM–; IgG–), n = 83. Serum groups used in IgG ELISA test: I–suspected acute phase of T. gondii infection (IgM +; IgG +; low avidity), n = 64. IIA–chronic T. gondii infection (IgM–; IgG >300 IU/ml; high avidity), n = 32. IIB–chronic T. gondii infection (IgM–; IgG 101–300 IU/ml; high avidity), n = 32. IIC–chronic T. gondii infection (IgM–; IgG ≤100 IU/ml; high avidity), n = 64. IIA-C–chronic T. gondii infection (IgM–; IgG +; high avidity), n = 128. III–control group (IgM–; IgG–), n = 137