Table 1 |
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|
αMSP1-19kD by age group. In Plasmodium-negativea individuals, αMSP1-19kD IgG responsesb differed by age groupc, but were similar within age group at the beginning versus end of the malaria seasond. |
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| Malaria status |
Age group |
Anti-MSP-1 19KD IgG response stratification |
Mar., 2003 (%, n) |
Feb., 2004 (%, n) |
Aug., 2004 (%, n) |
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|
|
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| NEG |
Adults |
≤ negative cut-off |
16.2% |
33 |
38.2% |
68 |
35.4% |
40 |
| NEG |
Adults |
> negative cut-off, but < 3 times negative cut-off |
20.6% |
17 |
13.5% |
24 |
21.2% |
24 |
| NEG |
Adults |
≥ 3 times negative cut-off |
63.2% |
92 |
48.3% |
86 |
43.4% |
49 |
| NEG |
Children |
≤ negative cut-off |
54.2% |
107 |
71.1% |
118 |
73.3% |
77 |
| NEG |
Children |
> negative cut-off, < 3 times negative cut-off |
23.2% |
17 |
10.8% |
18 |
10.5% |
11 |
| NEG |
Children |
≥ 3 times negative cut-off |
22.6% |
40 |
18.1% |
30 |
16.2% |
17 |
| p (chisq): age group by IgG response |
< 0.0001 |
< 0.0001 |
< 0.0001 |
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|
|
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|
aMalaria negative (NEG) = no Plasmodium infection (neither P. falciparum nor P. vivax) detected by microscopy or PCR. bAntibody response stratification: Negative ≤ negative cut-off; High-Positive ≥ 3 times negative cut-off; Low-Positive > Negative and < High-Positive. cAdults = ≥ 14 years old. dFebruary 2004 = beginning of transmission season. August 2004 = end of transmission season. |
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|
Torres et al. Malaria Journal 2008 7:173 doi:10.1186/1475-2875-7-173 |
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