The risk factors and clinical course of asthma-related COPD

Not Applicable

Completed

• Conditions: Asthma; Asthma, COPD, exacerbation, clinical&#44

• Registration Number: TCTR20150420001
• Lead Sponsor: Faculty of Medicne, ChiangMai university

Brief Summary

Not available

Detailed Description

Not available

Study Timeline

• Study Completion: 2011-11-30
• Study Start: 2015-04-20
• Last Update Posted: 19 August 2024

Recruitment & Eligibility

• Status: Completed
• Sex: All
• Target Recruitment: 120

Inclusion Criteria

Asthma patients routinely managed by pulmonologists, aged between 40-80 years, met the inclusion criteria for asthma diagnosis. The criteria for diagnosis of asthma were based on a smoking history of < 5 pack-years with episodic wheezing, coughing, chest tightness or dyspnea confirmed by standard ATS/ERS pre- and post-BD spirometry indicating reversibility of FEV1>12% and 200 ml.7

Exclusion Criteria

The exclusion criteria were history of irregular follow-up in the past year, poor compliance with treatment, and presence of concomitant systemic co-morbidities that can affect cardiopulmonary function.

Study & Design

• Study Type: Observational
• Study Design: Not specified

Primary Outcome Measures

Name	Time	Method
Potential risk factors - -

Secondary Outcome Measures

Name	Time	Method
exacerbation rate baseline, month 3,6, 9,12,15 time