The Impact of Multiple Parasite Infections on Children's Anemia
Author Information
Author(s): Ezeamama Amara E., McGarvey Stephen T., Acosta Luz P., Zierler Sally, Manalo Daria L., Wu Hai-Wei, Kurtis Jonathan D., Mor Vincent, Olveda Remigio M., Friedman Jennifer F.
Primary Institution: Brown University
Hypothesis
Children with co-infections of hookworm, S. japonicum, or trichuris will experience higher anemia burden relative to those with single infections.
Conclusion
Co-infections of hookworm and either S. japonicum or T. trichiura were associated with higher levels of anemia than expected from their independent effects.
Supporting Evidence
- Children with M+ co-infections had significantly higher odds of anemia.
- Synergy indices indicated that the interaction between hookworm and S. japonicum was greater than additive.
- Anemia prevalence was highest among children with M+ intensity infections.
Takeaway
Kids with more than one type of worm infection can get really sick and have low blood levels, which means they need more help to get better.
Methodology
Quantitative egg counts using the Kato–Katz method were performed on stool samples from school-age children, and logistic regression models were used to estimate odds ratios and synergy indices.
Potential Biases
Potential for residual confounding despite adjustments for known confounders.
Limitations
The study's cross-sectional design may limit the ability to establish causality, and the sample may not be representative of all children with low-intensity infections.
Participant Demographics
Children aged 7-18 years from helminth-endemic villages in The Philippines.
Statistical Information
P-Value
p<0.05
Confidence Interval
95% CI: 3.82–45.5
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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