Particulate air pollution, metabolic syndrome, and heart rate variability: the multi-ethnic study of atherosclerosis (MESA).
dc.contributor.author | Park, Sung Kyun | |
dc.contributor.author | Auchincloss, AH | |
dc.contributor.author | O'Neill, MS | |
dc.contributor.author | Prineas, R | |
dc.contributor.author | Correa, JC | |
dc.contributor.author | Keeler, J. | |
dc.contributor.author | Barr, R. G. | |
dc.contributor.author | Kaufman, J. D. | |
dc.contributor.author | Diez-Roux, Ana V. | |
dc.date.accessioned | 2010-11-22T16:27:49Z | |
dc.date.available | 2010-11-22T16:27:49Z | |
dc.date.issued | 2010-10 | |
dc.identifier.citation | Environ Health Perspect. 2010 Oct;118(10):1406-11. <http://hdl.handle.net/2027.42/78311> | en_US |
dc.identifier.uri | https://hdl.handle.net/2027.42/78311 | |
dc.description.abstract | BACKGROUND: Cardiac autonomic dysfunction has been suggested as a possible biologic pathway for the association between fine particulate matter ≤ 2.5 µm in diameter (PM2.5) and cardiovascular disease (CVD). We examined the associations of PM2.5 with heart rate variability, a marker of autonomic function, and whether metabolic syndrome (MetS) modified these associations. METHODS: We used data from the Multi-Ethnic Study of Atherosclerosis to measure the standard deviation of normal-to-normal intervals (SDNN) and the root mean square of successive differences (rMSSD) of 5,465 participants 45-84 years old who were free of CVD at the baseline examination (2000-2002). Data from the U.S. regulatory monitor network were used to estimate ambient PM2.5 concentrations at the participants' residences. MetS was defined as having three or more of the following criteria: abdominal obesity, hypertriglyceridemia, low high-density lipoprotein cholesterol, high blood pressure, and high fasting glucose. RESULTS: After controlling for confounders, we found that an interquartile range (IQR) increase in 2-day average PM2.5 (10.2 µg/m3) was associated with a 2.1% decrease in rMSSD [95% confidence interval (CI), -4.2 to 0.0] and nonsignificantly associated with a 1.8% decrease in SDNN (95% CI, -3.7 to 0.1). Associations were stronger among individuals with MetS than among those without MetS: an IQR elevation in 2-day PM2.5 was associated with a 6.2% decrease in rMSSD (95% CI, -9.4 to -2.9) among participants with MetS, whereas almost no change was found among participants without MetS (p-interaction = 0.005). Similar effect modification was observed in SDNN (p-interaction = 0.011). CONCLUSION: These findings suggest that autonomic dysfunction may be a mechanism through which PM exposure affects cardiovascular risk, especially among persons with MetS. | en_US |
dc.format.extent | 302220 bytes | |
dc.format.mimetype | application/pdf | |
dc.language.iso | en_US | en_US |
dc.title | Particulate air pollution, metabolic syndrome, and heart rate variability: the multi-ethnic study of atherosclerosis (MESA). | en_US |
dc.type | Article | en_US |
dc.subject.hlbsecondlevel | Public Health | |
dc.subject.hlbtoplevel | Health Sciences | |
dc.contributor.affiliationum | Epidemiology, Department of | en_US |
dc.contributor.affiliationumcampus | Ann Arbor | en_US |
dc.description.bitstreamurl | http://deepblue.lib.umich.edu/bitstream/2027.42/78311/1/ParkAuchincloss2010_EnvironHealthPersp.pdf | |
dc.identifier.source | Environmental Health Perspectives | en_US |
dc.owningcollname | Epidemiology, Department of (SPH) |
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