Risk Factors for Ocular Infection with Chlamydia trachomatis in Children after Mass Treatment in Tanzania
Author Information
Author(s): Luis Carlos Cajas-Monson, Harran Mkocha, Beatriz Muñoz, Thomas C. Quinn, Charlotte A. Gaydos, Sheila K. West
Primary Institution: Johns Hopkins University
Hypothesis
What are the risk factors for ocular infection with Chlamydia trachomatis in children following mass treatment?
Conclusion
Mass treatment with azithromycin significantly reduced infection rates, but did not eliminate them, indicating the need for ongoing treatment efforts.
Supporting Evidence
- Infection rates decreased from 23.7% at baseline to 10.4% at six months post-treatment.
- Children aged 2-4 years had a higher risk of infection at six months.
- Households with more untreated children had increased risk of infection.
Takeaway
Even after giving medicine to a lot of kids to stop eye infections, some kids still got sick, especially if they lived with other sick kids.
Methodology
The study followed 1,991 children under 9 years in four villages in Tanzania from pre-treatment to six months post-treatment, assessing infection through ocular exams and PCR tests.
Potential Biases
Potential bias due to loss of participants and the exclusion of contaminated samples.
Limitations
The study could not measure chlamydial load, and there was some loss to follow-up.
Participant Demographics
Children under 9 years of age from four villages in Tanzania.
Statistical Information
P-Value
0.001
Confidence Interval
95%CI 2.40–4.56
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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