TABLE 1.

Anti-EBA-175RII antibody levels measured with no episodes of clinical malaria (CI group) and in matched individuals (CS group) who had been diagnosed with clinical malaria between May and August 1998

Parameter	Mean OD		SEDa	P
	CI group (n = 33)	CS group (n = 50)
Log10 total anti-EBA175RII IgG, April 1998b	2.7 (501)	2.6 (398)	0.19	0.65
Log10 Total anti-EBA175RII IgG, October 1998b	2.7 (501)	2.7 (501)	0.21	0.90
Anti-EBA175RII IgG1, April 1998	23.2	21.9	2.4	0.58
Anti-EBA-175RII IgG2, April 1998	16.0	15.1	1.1	0.40
Anti-EBA-175RII IgG3, April 1998	26.2	21.8	4.2	0.30
Anti-EBA-175RII IgG4, April 1998	14.1	13.2	0.61	0.13
Anti-EBA-175RII IgM, April 1998	95.9	93.1	7.74	0.71

^aStandard error of difference between means.

^bThis variable was log₁₀ transformed due to its large variance relative to its mean; hence, the P value represents the probability level resulting from the analysis of the transformed data. The values in parentheses are the antilogs.