Periodicity of asthma, emphysema, and chronic bronchitis in a northwest health maintenance organization

Molly Osborne, William M. Vollmer, A (Sonia) Buist

Research output: Contribution to journalArticle

22 Citations (Scopus)

Abstract

Study objective: Since seasonal patterns in morbidity may identify triggers provoking hospital-based care for airflow obstruction, this study examined seasonal variation in patterns of hospitalizations for asthma, chronic bronchitis, and emphysema. Design and setting: The data for this analysis were derived from the abstracted medical records of a large health maintenance organization, Kaiser Permanente, Northwest region, over the period 1979 to 1987. Patients: In all, 2,060 primary hospital discharges for asthma and 1,121 primary hospital discharges for the combination chronic bronchitis/emphysema were observed. Results: The monthly patterns varied for asthma and chronic bronchitis/emphysema, and also varied by age and sex. For young children 0 to 14 years, asthma hospitalizations peaked primarily in the fall. In contrast, for young children 0 to 14 years, hospitalizations for chronic bronchitis/emphysema peaked in the fall/winter months. Seasonal variation decreased as age increased for chronic bronchitis/emphysema, such that for the 65+ year group, there was no seasonal variation. Conclusion: A better understanding of the causes of the age-specific seasonal patterns in these obstructive respiratory diseases may help to reduce the morbidity that is associated with them.

Original languageEnglish (US)
Pages (from-to)1458-1462
Number of pages5
JournalChest
Volume110
Issue number6
StatePublished - 1996

Fingerprint

Health Maintenance Organizations
Chronic Bronchitis
Emphysema
Periodicity
Asthma
Hospitalization
Morbidity
Medical Records

Keywords

  • asthma
  • chronic bronchitis
  • emphysema
  • epidemiology
  • health maintenance organization
  • hospitalization
  • seasonal patterns

ASJC Scopus subject areas

  • Pulmonary and Respiratory Medicine

Cite this

Periodicity of asthma, emphysema, and chronic bronchitis in a northwest health maintenance organization. / Osborne, Molly; Vollmer, William M.; Buist, A (Sonia).

In: Chest, Vol. 110, No. 6, 1996, p. 1458-1462.

Research output: Contribution to journalArticle

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