Background: Lower respiratory tract infections are a leading cause of hospitalization and mortality among children worldwide. Our objective was to describe the incidence and epidemiology of severe bronchiolitis, respiratory syncytial virus (RSV), and pneumonia among children in Hawaii.
Methods: Retrospective analysis of the patient-linked hospital discharge data associated with bronchiolitis, RSV, and pneumonia among Hawaii residents younger than 5 years of age during 1997 through 2004 using the Hawaii State Inpatient Database.
Results: During 1997 through 2004, the average annual incidence rates for bronchiolitis, RSV, and pneumonia were 3.8, 2.7, and 6.8 per 1000 children younger than 5 years, respectively. The incidence of each condition was higher for infants younger than 1 year (15.1, 9.8, and 15.9 per 1000 infants, respectively) than the incidence for children 1–4 years of age, and higher for boys compared with girls. The incidence of each condition was highest among Native Hawaiian and other Pacific Islander children compared with children of other race groups living in Hawaii. Most hospitalizations occurred during the months of October through February. Estimated median hospital charges were $4806 (bronchiolitis), $5465 (RSV) and $5240 (pneumonia), with overall average annual charges of $11.5 million.
Conclusion: The incidence and hospitalization rates for bronchiolitis, RSV, and pneumonia among children younger than 5 years of age in Hawaii were low; the corresponding hospitalization rates were lower than those for the general U.S. population. However, the hospitalization rates for each condition among Hawaiian and other Pacific Islander children were much higher than those for other race groups or for the U.S. population.
From the *Office of the Director, Division of Viral and Rickettsial Diseases (DVRD), National Center for Infectious Diseases (NCID), Centers for Disease Control and Prevention (CDC), U.S. Department of Health and Human Services, Atlanta, GA; †Healthcare Cost and Utilization Project, Center for Delivery, Organization and Markets, Agency for Healthcare Research and Quality, U.S. Department of Health and Human Services, Rockville, MD; ‡Hawaii Department of Health, Honolulu, HI; §Hawaii Health Information Corporation, Honolulu, HI; ∥Respiratory and Enteric Disease Branch, DVRD, NCID, CDC, U.S. Department of Health and Human Services, Atlanta, GA; ¶Department of Pediatrics, John A. Burns School of Medicine, University of Hawaii and Kapiolani Medical Specialists, Honolulu, HI.
Accepted for publication May 30, 2007.
The findings and conclusions in this report are those of the authors and do not necessarily represent the views of the funding agencies.
Address for correspondence: Krista Yorita, MPH, Division of Viral and Rickettsial Diseases, National Center for Infectious Diseases, Centers for Disease Control and Prevention, MS A-39, Atlanta, GA 30333. E-mail: KYorita@cdc.gov.