Table 3.
Numbers of positive cases and prevalence estimates (weighted percentages) for HIV, malaria parasitemia, and intestinal helminth infestation in the study regionsa.
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Quelimane, n=179 | Maganja da Costa District, n=184 | Morrumbala District, n=188 | P b | |
| HIV | |||||
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n (weighted %) | 10/103 (9.7) | 10/117 (7.4) | 9/152 (4.5) | .32 |
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95% CI | 4.1-15.3 | 2.0-12.7 | 1.2-7.9 |
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|
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Missing data, n | 76 | 67 | 36 |
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| Malaria parasitemia c | |||||
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n (weighted %) | 2/164 (1.2) | 42/168 (26.2) | 2/178 (0.9) | < .001 |
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95% CI | 0-2.9 | 18.6-33.7 | 0-2.3 |
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|
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Missing data, n | 15 | 16 | 10 |
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| Intestinal helminth infestation d,e | |||||
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n (weighted %) | 28/105 (26.7) | 7/138 (6.8) | 13/110 (13.1) | .007 |
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95% CI | 18.4-35.0 | 2.0-11.7 | 6.4-19.9 |
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Missing data, n | 74 | 46 | 78 |
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aSampling weights were used. Seasonal differences within each area were tested with chi-square test before pooling data from two seasons and significant differences were found for intestinal helminths in Maganja da Costa (Jan-Feb: weighted percentage 12%, 7/71, vs May-June: weighted percentage 0%, 0/67; P=.002) and in Morrumbala (Jan-Feb: weighted percentage 20%, 10/58, vs May-June: weighted percentage 6%, 3/52; P=.04).
bOverall test, chi-square, of regional differences after pooling data from the two seasons. This test was followed by pairwise tests.
cIn pairwise comparisons, Quelimane differed significantly from Maganja da Costa (P<.001), and Maganja da Costa differed significantly from Morrumbala District (P<.001).
dIn pairwise comparisons, Quelimane differed significantly from Maganja da Costa (P<.001) and from Morrumbala District (P=.02).
eThe species identified: A duodenale—18 findings, A lumbricoides—12 findings, T trichiura—10 findings, S stercoralis—7 findings, and S mansoni—2 findings. One participant was infested with two species.