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TableĀ 2 Potency (relative to S1) and EC50 estimates for samples XC, C1, C2 and C3

From: The establishment of a WHO Reference Reagent for anti-malaria (Plasmodium falciparum) human serum

Antigen Sample
XC C1 C2 C3
A. Potency relative to S1: Between-laboratory geometric mean and geometric coefficient of variation (%) after exclusion of laboratories 2, 3, 4 and 13
AMA-1 0.809 (9.6%) 3.549 (8.2%) 0.870 (5.7%) 0.014 (12.5%)
MSP-142 0.493 (8.3%) 2.447 (8.4%) 0.871 (6.6%) 0.033 (11.5%)
MSP-3 0.548 (7.9%) 3.026 (6.2%) 0.812 (5.4%) 0.041 (13.9%)
B. EC 50 estimates: Between-laboratory geometric mean and geometric coefficient of variation (%) after exclusion of laboratories 2, 3, 4 and 13
AMA-1 0.071 (79.7%) 0.016 (62.4%) 0.069 (69.5%) 3.849 (82.7%)
MSP-142 0.309 (52.8%) 0.061 (48.1%) 0.167 (56.0%) 4.406 (46.6%)
MSP-3 0.620 (60.6%) 0.108 (63.9%) 0.441 (53.6%) 7.892 (62.0%)