Journal article
Percent Emphysema and Daily Motor Activity Levels in the General Population: Multi-Ethnic Study of Atherosclerosis
Chest, Vol.151(5), pp.1039-1050
05/2017
DOI: 10.1016/j.chest.2016.11.033
PMCID: PMC5472515
PMID: 27940190
Abstract
COPD is associated with reduced physical capacity. However, it is unclear whether pulmonary emphysema, which can occur without COPD, is associated with reduced physical activity in daily life, particularly among people without COPD and never smokers. We hypothesized that greater percentage of emphysema-like lung on CT scan is associated with reduced physical activity assessed by actigraphy and self-report.
The Multi-Ethnic Study of Atherosclerosis (MESA) enrolled participants free of clinical cardiovascular disease from the general population. Percent emphysema was defined as percentage of voxels < -950 Hounsfield units on full-lung CT scans. Physical activity was measured by wrist actigraphy over 7 days and a questionnaire. Multivariable linear regression was used to adjust for age, sex, race/ethnicity, height, weight, education, smoking, pack-years, and lung function.
Among 1,435 participants with actigraphy and lung measures, 47% had never smoked, and 8% had COPD. Percent emphysema was associated with lower activity levels on actigraphy (P = .001), corresponding to 1.5 hour less per week of moderately paced walking for the average participant in quintile 2 vs 4 of percent emphysema. This association was significant among participants without COPD (P = .004) and among ever (P = .01) and never smokers (P = .03). It was also independent of coronary artery calcium and left ventricular ejection fraction. There was no evidence that percent emphysema was associated with self-reported activity levels.
Percent emphysema was associated with decreased physical activity in daily life objectively assessed by actigraphy in the general population, among participants without COPD, and nonsmokers.
Details
- Title: Subtitle
- Percent Emphysema and Daily Motor Activity Levels in the General Population: Multi-Ethnic Study of Atherosclerosis
- Creators
- Christian M Lo Cascio - Department of Medicine, Columbia University, New York, NYMirja Quante - Department of Medicine, Brigham and Women's Hospital and Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MAEric A Hoffman - Department of Internal Medicine, University of Iowa, Iowa City, IAAlain G Bertoni - Department of Epidemiology and Prevention, Wake Forest University, Winston-Salem, NCCarrie P Aaron - Department of Medicine, Columbia University, New York, NYJoseph E Schwartz - Department of Medicine, Columbia University, New York, NY; Department of Psychiatry and Behavioral Science, Stony Brook University, Stony Brook, NYMark V Avdalovic - Department of Internal Medicine, UC Davis School of Medicine, Sacramento, CAVincent S Fan - VA Puget Sound Health Care System, Seattle, WA; Department of Medicine, University of Washington, Seattle, WAGina S Lovasi - Department of Medicine, Columbia University, New York, NYSteven M Kawut - Department of Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PAJohn H M Austin - Department of Radiology, Columbia University, New York, NYSusan Redline - Department of Medicine, Brigham and Women's Hospital and Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MAR Graham Barr - Department of Medicine, Columbia University, New York, NY. Electronic address: rgb9@columbia.edu
- Resource Type
- Journal article
- Publication Details
- Chest, Vol.151(5), pp.1039-1050
- Publisher
- United States
- DOI
- 10.1016/j.chest.2016.11.033
- PMID
- 27940190
- PMCID
- PMC5472515
- ISSN
- 0012-3692
- eISSN
- 1931-3543
- Grant note
- R01 HL098433 / NHLBI NIH HHS P30 ES005605 / NIEHS NIH HHS R01 HL093081 / NHLBI NIH HHS K24 HL103844 / NHLBI NIH HHS R01 HL112986 / NHLBI NIH HHS R01 HL077612 / NHLBI NIH HHS
- Language
- English
- Date published
- 05/2017
- Academic Unit
- Roy J. Carver Department of Biomedical Engineering; Radiology; Internal Medicine
- Record Identifier
- 9984051761502771
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