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Chest. 1997 Feb;111(2):303-10.

Incidence and outcomes of asthma in the elderly. A population-based study in Rochester, Minnesota.

Author information

1
Department of Health Sciences Research, Mayo Clinic, Rochester, MN 55905, USA.

Abstract

STUDY OBJECTIVE:

To estimate the incidence of asthma in an elderly population and to describe the clinical characteristics, use of health services, and long-term survival of persons with onset of asthma after age 65 years.

DESIGN:

Retrospective cohort study.

SETTING:

Rochester, Minn.

PATIENTS:

All Rochester, Minn, residents age 65 years or older who met criteria for onset of definite or probable asthma from 1964 through 1983.

INTERVENTIONS:

None.

MEASUREMENTS AND RESULTS:

Ninety-eight Rochester residents (52 female, 46 male) with onset of asthma at or after age 65 years were identified. The age- and sex-adjusted incidence was 95/100,000 (95% confidence interval, 76 to 115/100,000). The age-specific incidence of asthma was 103/100,000 in residents aged 65 to 74 years, 81/100,000 in those aged 75 to 84 years, and 58/100,000 in residents older than 85 years. Only 11% had allergy skin tests, 24% had at least one office peak flow measurement, and 43% had at least one spirometry measurement. After the diagnosis of asthma, 40% had unscheduled ambulatory visits, 22% had emergency department visits, and 42% had at least one hospitalization for asthma. Observed survival was not significantly different from expected survival.

CONCLUSIONS:

Asthma is common in the elderly. Diagnostic evaluation was less intensive than present guidelines recommend. Following the diagnosis of asthma, a substantial proportion of these individuals required unscheduled ambulatory visits, emergency department visits, or hospitalizations. Asthma with onset after age 65 years was not associated with reduced survival.

PMID:
9041973
DOI:
10.1378/chest.111.2.303
[Indexed for MEDLINE]

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