Increasing Incidence of Hospitalization for Bronchiolitis among Canadian Children, 1980–2000

作者：Joanne Marie Langley, John C. LeBlanc, Bruce R. Smith, Elaine E. L. Wang · 发表于：The Journal of Infectious Diseases · 年份：2003 · DOI：10.1086/379740 · 被引用次数：83 · 研究领域：Respiratory viral infections research、Viral gastroenteritis research and epidemiology、Pneumonia and Respiratory Infections

We evaluated temporal trends in hospitalization for bronchiolitis found among Canadian children for 1980-2000. The rate of hospital admission increased in all provinces over the 2 decades for all age groups but was highest in those aged <6 months. The mean length of stay decreased from 5.4 to 3.1 days (mean rate of decrease, 0.13 days/year; P<.0001). Because a concurrent increase in other respiratory diagnostic codes was not seen, it is unlikely that physician practice variation could explain this consistent trend over almost 2 decades, which may indicate a change in disease prevalence or severity.