Research Article
Risk Factors for Asthma in a Helminth Endemic Area in Bahia, Brazil
Table 1
Frequency of S. mansoni infection according to the level of exposure.
| β | S. mansoni | Univariate analysis | Multivariate analysis | β | Positive | Negative | OR (95% CI) | | OR (95% CI) | |
| Level of exposure | β | β | β | β | β | β | βNo contact | 26 (29.5%) | 62 (70.5%) | 1.00 | β | 1.00 | β | βLow | 62 (55.9%) | 49 (44.1%) | 2.18 (1.13β4.22) | 0.021 | 2.56 (1.22β5.34) | 0.013 | βMedium | 38 (67.9%) | 18 (32.1%) | 3.17 (1.41β7.15) | 0.005 | 2.67 (1.11β6.42) | 0.028 | βHigh | 107 (70.9%) | 44 (29.1%) | 4.00 (2.11β7.61) | <0.001 | 3.64 (1.81β7.29) | <0.001 |
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Note: Multivariate analysis adjusted by age, gender, and number of stool samples analyzed.
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