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Indoor air quality in respiratory disease

A mixed methods observational study to determine the sources and impact of indoor air pollution in patients with chronic airways disease

Status
Recruiting
Phases
Unknown
Study type
Observational
Source
ISRCTN
Registry ID
ISRCTN17279929
Enrollment
100
Registered
2022-06-01
Start date
2022-07-01
Completion date
Unknown
Last updated
2023-10-16

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

The sources and impact of indoor air pollution in patients with respiratory disease Respiratory

Interventions

Part 1: Understanding perceptions of Vulnerable Groups on indoor Air Quality This part of the project will recruit 20-30 people. All will give informed consent. Focus groups of up to 6 people, or ind

Sponsors

University of Birmingham
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: Either COPD or asthma, as defined by their referring/usual care clinician in the medical record.

Exclusion criteria

Exclusion criteria: Patients unwilling or unable to participate in the study, or those who do not have a COPD/asthma diagnosis.

Design outcomes

Primary

MeasureTime frame
Part 1: Participant understanding and perception of Indoor Air Quality measured using focus group sessions. The questions will be informed by a literature review which has been conducted ahead of the trial commencement. These focus groups will be of around 6 participants and will last around one hour. Part 2: Participant understanding and perception of Indoor Air Quality measured using an online questionnaire. These questions will be informed by the literature review and the information which is collected in part 1. Each questionnaire should take around 5 minutes to complete. Part 3: 3.1. Air quality in participants' homes measured using an air quality monitor installed in participant's homes for a period of two-weeks. 3.2. Symptom diary completed by participants once per day for the same two week period. COPD patients will be asked to complete the Bronkotest e-diary, which will take around 2-minutes each day, and asthma patients will be asked to complete the ACT questionnaire which will take around one-minute each day. Asthma patients will also be asked to submit a Peak Expiratory Flow Rate (PEFR) once a day as part of their diary.

Secondary

MeasureTime frame
There are no secondary outcome measures

Countries

England, United Kingdom

Outcome results

None listed

Source: ISRCTN (via WHO ICTRP) · Data processed: Feb 4, 2026