Association between respiratory syncytial virus hospitalization in infancy and childhood asthma
2020
INTRODUCTION: Respiratory syncytial virus infection in early childhood has been linked to longer-term respiratory morbidity; however, debate persists around its impact on asthma. The objective was to assess the association between respiratory syncytial virus hospitalization and childhood asthma. METHODS: Asthma hospital admissions and medication use through 18 years were compared in children with (cases) and without (controls) respiratory syncytial virus hospitalization in the first 2 years of life. All children born in National Health Service Scotland between 1996 and 2011 were included. RESULTS: Of 740 418 children (median follow-up: 10.6 years), 15 795 (2.1%) had a respiratory syncytial virus hospitalization at /=2-fold higher; medication: >/=1.5-fold higher). Respiratory syncytial virus hospitalization was the most significant risk factor for asthma hospitalizations+/-medication use (odds ratio: 1.9-2.8; P < .001). CONCLUSIONS: Respiratory syncytial virus hospitalization was associated with significantly increased rates and severity of asthma throughout childhood, which has important implications for preventive strategies.
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