Effect of gender on hospital admissions for asthma and prevalence of self-reported asthma: a prospective study based on a sample of the general population. Copenhagen City Heart Study Group

Thorax. 1997 Mar;52(3):287-9. doi: 10.1136/thx.52.3.287.


Background: Women are more often admitted to hospital for asthma than men. A study was undertaken to determine whether this is caused by gender differences in the prevalence or severity of the disease.

Methods: Admissions to hospital for asthma in 13,540 subjects were followed from 1977 to 1993.

Results: At baseline 315 subjects (2.3%) reported asthma, 2.2% of women and 2.5% of men. During follow up 160 subjects were admitted to hospital for asthma. After controlling for self-reported asthma and smoking, women had a higher risk of being admitted to hospital than men (relative risk 1.7, 95% confidence interval 1.2 to 2.4). This increased risk was not due to misclassification of chronic obstructive pulmonary disease (COPD) as asthma.

Conclusions: These findings indicate gender-related differences in either the severity, perception, or management of asthma.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Adult
  • Asthma / epidemiology*
  • Asthma / psychology
  • Female
  • Humans
  • Longitudinal Studies
  • Male
  • Patient Admission*
  • Prevalence
  • Risk Factors
  • Self Concept
  • Sex Distribution