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Eur J Med Res. 2001 Jun 28;6(6):263-71.

Early antibiotic treatment and later asthma.

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Institut für Epidemiologie, GSF - Forschungszentrum für Umwelt und Gesundheit, Ingolstädter Landstrasse 1, D-85764 Neuherberg/Munich, Germany.


The reasons for the asthma epidemic are poorly understood. As the asthma prevalence follows the geographical and temporal trend of antibiotic use into clinical medicine, we examined a possible association in a population-based study of 2,512 children age 5-14 in East Germany. Wheezing was associated with increasing number of antibiotic courses (never versus one time odds ratio 1.9, P = 0.012, 2 to 5 times odds ratio 3.0, P<0.001 and more than 5 times, odds ratio 6.9, P<0.001) which was also seen for asthma diagnosis. The risk increased with earlier administration (never versus second year odds ratio 4.6, month 7-12 odds ratio 5.4 and birth until month 6 odds ratio 7.9, all P<0.001). Also non pulmonary treatment indication was associated with later wheezing (odds ratio 3.9, P<0.001). The most likely possible explanation is reverse causation indicating that frequent upper respiratory infections, an early symptom of asthma, are treated with antibiotics. Antibiotic therapy could also be a proxy of another closely associated genetic or environmental factor. The high dose effect, the time dependency of the administration and the effect by non-pulmonary indications raises the possibility that early antibiotic treatment could itself be related to later asthma.

[Indexed for MEDLINE]

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