Study on indoor cleaning effect by air purifier and the influence on asthma
- Conditions
- Bronchial asthma
- Registration Number
- JPRN-UMIN000025330
- Lead Sponsor
- Tokyo Medical and Dental University
- Brief Summary
Air purifiers significantly decreased the levels of PM0.3, 2.5, and 5.0 in closed bedrooms. However, there were no significant differences in the number of cultured fungal colonies and mite antigen level. Spirometry, FOT and FeNO measurements results did not significantly too. Hence, the patients consistently had good asthma control. The intervention group experienced a significant improvement in the ACT score. The changes in treatment steps between the two groups did not significantly differ.
- Detailed Description
Not available
Recruitment & Eligibility
- Status
- Complete: follow-up complete
- Sex
- All
- Target Recruitment
- 50
Not provided
(1) Complicated patients with other respiratory diseases (lung cancer, interstitial pneumonia etc). (2) Persons who have severe liver, kidney, heart, or blood disease, other serious complications. (3) Person who the doctor judged unsuitable as the subject.
Study & Design
- Study Type
- Interventional
- Study Design
- Not specified
- Primary Outcome Measures
Name Time Method airborne dust, mite antigen, fungus, pulmonary function and asthma control of the patients
- Secondary Outcome Measures
Name Time Method