Sustained Effects on Lung Function in Community Members Following Exposure to Hazardous PM2.5 Levels from Wildfire Smoke
Abstract
:1. Introduction
2. Methods
2.1. Study Design
2.2. Study Population
2.3. Particle Exposures
2.4. Study Procedures
2.4.1. Surveys and Participant Screening
2.4.2. Pulmonary Function Tests
2.5. Data Analysis
3. Results
3.1. Cohorts
3.2. Exposures
3.3. Lung Function Assessments
3.3.1. FEV1/FVC Decrease
3.3.2. Lower Limit of Normal (LLN)
3.3.3. Peak Expiratory Flow
3.3.4. Annual FEV1 Decline
3.4. Covariates
4. Discussion
5. Conclusions
Author Contributions
Funding
Acknowledgments
Conflicts of Interest
References
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Variable | Seeley Lake | Thompson Falls | ||
---|---|---|---|---|
2017 | 2018 | 2019 | 2018 | |
Participants | 95 | 42 | 62 | 24 |
Age * (years) | 63 ± 1.5 | 63 ± 2.1 | 64 ± 1.5 | 59 ± 2.5 |
Sex | ||||
Male | 44 | 18 | 26 | 5 |
Female | 51 | 24 | 36 | 19 |
Race | ||||
White | 93 | 40 | 60 | 24 |
Asian | 1 | 1 | 1 | 0 |
African American | 0 | 0 | 0 | 0 |
Hispanic | 2 | 1 | 2 | 0 |
Education | ||||
Less than High School | 2 | 1 | 1 | 0 |
High School Diploma or GED | 25 | 11 | 14 | 5 |
Some College | 27 | 12 | 19 | 7 |
College Degree | 41 | 16 | 26 | 12 |
Income | ||||
Less than $29,999 | 18 | 9 | 11 | 5 |
$30,000–$74,999 | 52 | 22 | 28 | 15 |
Greater than $75,000 | 18 | 11 | 18 | 3 |
n | Clinically Decreased (%) | Average Decrease (mL) | ||
---|---|---|---|---|
2017–2018 | Total | 37 | 19 (50%) | −0.231 ± 0.056 |
Males | 18 | 8 (44%) | −0.289 ± 0.114 | |
Females | 19 | 11 (55%) | −0.208 ± 0.060 | |
2018–2019 | Total | 30 | 17 (57%) | −0.123 ± 0.029 |
Males | 14 | 7 (50%) | −0.172 ± 0.043 | |
Females | 16 | 10 (63%) | −0.135 ± 0.025 |
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Orr, A.; A. L. Migliaccio, C.; Buford, M.; Ballou, S.; Migliaccio, C.T. Sustained Effects on Lung Function in Community Members Following Exposure to Hazardous PM2.5 Levels from Wildfire Smoke. Toxics 2020, 8, 53. https://doi.org/10.3390/toxics8030053
Orr A, A. L. Migliaccio C, Buford M, Ballou S, Migliaccio CT. Sustained Effects on Lung Function in Community Members Following Exposure to Hazardous PM2.5 Levels from Wildfire Smoke. Toxics. 2020; 8(3):53. https://doi.org/10.3390/toxics8030053
Chicago/Turabian StyleOrr, Ava, Cristi A. L. Migliaccio, Mary Buford, Sarah Ballou, and Christopher T. Migliaccio. 2020. "Sustained Effects on Lung Function in Community Members Following Exposure to Hazardous PM2.5 Levels from Wildfire Smoke" Toxics 8, no. 3: 53. https://doi.org/10.3390/toxics8030053