TABLE 1.

Correlations between antibody responses to merozoite antigens of P. falciparum

Antigen and antibody	Correlation coefficienta
	AMA-1			MSP1-19			MSP2 3D7			MSP2 FC27
	IgG	IgG1	IgG3	IgG	IgG1	IgG3	IgG	IgG1	IgG3	IgG	IgG1	IgG3
AMA-1
IgG		0.87	0.46	0.48	0.52	0.43	0.49	0.20**	0.48	0.48	0.37	0.41
IgG1			0.47	0.46	0.50	0.40	0.48	0.24	0.49	0.48	0.39	0.41
IgG3				0.40	0.44	0.55	0.42	0.22**	0.42	0.42	0.16*	0.47
MSP1-19
IgG					0.86	0.32	0.41	0.14*	0.42	0.47	0.31	0.38
IgG1						0.34	0.48	0.21**	0.48	0.43	0.37	0.37
IgG3							0.43	0.26	0.44	0.54	0.31	0.56
MSP2 3D7
IgG								0.48	0.89	0.46	0.36	0.39
IgG1									0.39	0.32	0.36	0.25
IgG3										0.40	0.29	0.37
MSP2 FC27
IgG											0.72	0.91
IgG1												0.6
IgG3
Schizont protein extract IgG		0.52	0.58		0.68	0.52		0.36	0.58		0.44	0.58

^aCorrelation coefficients were determined by Spearman's method, using samples that had complete data only (n = 198). All correlations are significant at a P value of <0.001 unless otherwise indicated (*, P < 0.05; **, P < 0.01).