Early Diagnosis and Treatment of Asthma and COPD Improves Healthcare Utilization and Quality of Life

Researchers at Ottawa Health Research Institute conducted a trial to investigate the benefits of early diagnosis and treatment of asthma and chronic obstructive pulmonary disease (COPD) by pulmonologists. The results showed that early diagnosis and treatment of asthma and COPD by pulmonologists improved healthcare utilization, respiratory symptoms, and quality of life. Patients with higher disease burden at diagnosis were more likely to benefit from early diagnosis and treatment compared to those with lower disease burden. Additionally, patients with asthma tended to derive greater benefit from pulmonologist-directed care than patients with COPD.

Key Takeaways:

  • Early diagnosis and treatment of asthma and COPD by pulmonologists improved healthcare utilization, respiratory symptoms, and quality of life.
  • Patients with higher disease burden at diagnosis were more likely to benefit from early diagnosis and treatment compared to those with lower disease burden.
  • 71% of patients with high disease burden improved their COPD Assessment Test (CAT) score by 2 points over 12 months, compared to 47% with low disease burden (OR 2.78, 95% CI: 1.90 to 4.07, p < 0.001).
  • Patients with asthma tended to derive greater benefit from pulmonologist-directed care than patients with COPD.
  • The Undiagnosed COPD and Asthma Population trial showed that early diagnosis and treatment of asthma and COPD improved healthcare utilization, respiratory symptoms, and quality of life.
  • The study included 508 newly diagnosed participants with COPD or asthma, who were randomized to a pulmonologist-care intervention or usual care.
  • Case finding was used to identify undiagnosed adults with chronic respiratory symptoms in the community.
  • The research concluded that patients with higher disease burden at diagnosis were more likely to benefit from early diagnosis and treatment compared to those with lower disease burden.

Statistics:

  • 508 newly diagnosed participants with COPD or asthma were included in the study.
  • 71% of patients with high disease burden improved their CAT score by 2 points over 12 months.
  • 47% of patients with low disease burden improved their CAT score by 2 points over 12 months.
  • The odds ratio (OR) for improved CAT score among patients with high disease burden was 2.78 (95% CI: 1.90 to 4.07, p < 0.001).

Sources:

  • Ottawa Health Research Institute
  • American Journal of Respiratory and Critical Care Medicine (2025)
  • NewsRx (2025)
  • American Journal of Respiratory and Critical Care Medicine (volume, issue, and pages not specified)
  • NewsRx (citation: NewsRx. New Findings Reported from Ottawa Health Research Institute Describe Advances in Asthma (Patient Factors and Clinical Efficacy of Early Identification and Treatment of COPD and Asthma). Respiratory Therapeutics Week. October 20, 2025; p 2647.)