Jan 9, 2003

Mortality associated with influenza and respiratory syncytial virus in the United States

JAMA : the Journal of the American Medical Association
William W ThompsonKeiji Fukuda

Abstract

Influenza and respiratory syncytial virus (RSV) cause substantial morbidity and mortality. Statistical methods used to estimate deaths in the United States attributable to influenza have not accounted for RSV circulation. To develop a statistical model using national mortality and viral surveillance data to estimate annual influenza- and RSV-associated deaths in the United States, by age group, virus, and influenza type and subtype. Age-specific Poisson regression models using national viral surveillance data for the 1976-1977 through 1998-1999 seasons were used to estimate influenza-associated deaths. Influenza- and RSV-associated deaths were simultaneously estimated for the 1990-1991 through 1998-1999 seasons. Attributable deaths for 3 categories: underlying pneumonia and influenza, underlying respiratory and circulatory, and all causes. Annual estimates of influenza-associated deaths increased significantly between the 1976-1977 and 1998-1999 seasons for all 3 death categories (P<.001 for each category). For the 1990-1991 through 1998-1999 seasons, the greatest mean numbers of deaths were associated with influenza A(H3N2) viruses, followed by RSV, influenza B, and influenza A(H1N1). Influenza viruses and RSV, respectively, w...Continue Reading

Mentioned in this Paper

Respiratory Syncytial Virus Infections
Morbidity Aspects
Circulatory System
Vaccines
Influenza virus vaccine
Influenza
Influenza B virus
Pneumonia and Influenza
Blood Circulation
Respiratory syncytial virus

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