Validation of an enzyme-linked immunosorbent assay for the quantification of human IgG directed against the repeat region of the circumsporozoite protein of the parasite Plasmodium falciparum

Table 6 Influence of 3 freeze-thaw cycles or storage at room temperature of the serum sample on anti-CSP repeats antibody concentration

Sample code	Concentration (EU/ml)
Sample code	Basis condition	3 cycles	RT
1	80.7	74.2	74.5
2	122.2	150.5	139.9
3	92.7	93.0	99.5
4	80.6	80.7	77.4
5	57.2	50.0	68.9
6	68.3	72.4	64.2
7	94.8	89.3	87.0
8	111.0	118.5	112.0
9	41.5	45.2	41.7
10	610.0	596.7	591.7
GMC	97.37	98.57	98.43
GMR, compared with basis condition (95%CI)		1.01 (0.94-1.09)	1.01 (0.94-1.08)

ISSN: 1475-2875