N/A
Completed N=77
Reducing Traffic Pollution Exposure Improves Blood Pressure
Source: ClinicalTrials.gov NCT04029129 ↗Enrolled (actual)
77
Serious AEs
0.0%
Results posted
Sep 2023
Primary outcomePrimary: Systolic Blood Pressure (SBP) — 122.3; 120.83; 119.9 mmHg
Summary
This randomized trial assessed the effect of modifying building envelop and level of air filtration on blood pressure over two hour exposure sessions.
Outcome Measures
| Outcome | Result | p-value |
|---|---|---|
| PRIMARY Systolic Blood Pressure (SBP) |
122.3; 120.83; 119.9 | — |
| SECONDARY Diastolic Blood Pressure (DBP) |
69.9; 70.4; 71.0 | — |
Eligibility Criteria
Inclusion Criteria
- The inclusion criterion was age 40-75 years.
- There was a preference for people who were otherwise healthy, but overweight or obese.
Exclusion Criteria
- A history of a major cardiovascular outcome (including myocardial ischemia (MI), stroke, angina)
- Other serious health problems (current asthma or COPD)
- Taking anti-hypertensive medications
- Smoking or living with a smoker
- Cognitive impairment
- Working at a job with high combustion exposure (taxi/truck driver, restaurant cook)
- High combustion exposure in the preceding 24 hours (driving on the highway, cooking in a restaurant, driving a truck)
- Not speaking English or Chinese.
Data sourced from ClinicalTrials.gov (NCT04029129). Outcome figures and adverse-event rates are extracted automatically from the registry's posted results and are provided for clinician reference, not as a substitute for the primary publication. Informational only — not medical advice.