What question did this study set out to answer?

To evaluate the impact of prenatal microbial exposures, including maternal infections and antibiotic use during pregnancy, on the incidence of childhood allergic diseases.

September 1, 2002American Journal of Respiratory and Critical Care Medicine

The Importance of Prenatal Exposures on the Development of Allergic Disease: A Birth Cohort Study Using the West Midlands General Practice Database

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Authors

TMTricia M. McKeeverUniversity of Nottingham SLSarah LewisFlorida State University CSChris SmithUniversity of London

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Implication

Birth cohort study finds prenatal antibiotic and infection exposure increases allergic disease risk in children, suggesting early microbial disruption shapes childhood allergy.

Key Points

To evaluate the impact of prenatal microbial exposures, including maternal infections and antibiotic use during pregnancy, on the incidence of childhood allergic diseases.
Analyzed longitudinal healthcare records from a population-based birth cohort of 24,690 children using the West Midlands General Practice Research Database.
Assessed maternal in utero exposure to antibiotics and infections, adjusting for family characteristics such as birth order and previous maternal pregnancies.
In utero exposure to more than two courses of antibiotics compared with none was associated with a higher risk of asthma (adjusted HR 1.68; 95% CI, 1.51–1.87), eczema (adjusted HR 1.17; 95% CI, 1.06–1.29), and hay fever (adjusted HR 1.56; 95% CI, 1.22–2.01) in a dose-dependent pattern.
Exposure to maternal infections in utero conferred a small increased risk of allergic disease, whereas the presence of older siblings provided a strong protective effect against allergy incidence.

Cite This Study

McKeever et al. (2002) studied this question.

synapsesocial.com/papers/6a75df538d9f8f61228b6e7e https://doi.org/10.1164/rccm.200202-158oc

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Implication

Birth cohort study finds prenatal antibiotic and infection exposure increases allergic disease risk in children, suggesting early microbial disruption shapes childhood allergy.

The Importance of Prenatal Exposures on the Development of Allergic Disease: A Birth Cohort Study Using the West Midlands General Practice Database

Discussion

Member takes

Implication

Key Points

Cite This Study

The Importance of Prenatal Exposures on the Development of Allergic Disease: A Birth Cohort Study Using the West Midlands General Practice Database

Discussion

Member takes

Implication

Key Points

Cite This Study

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