Now showing items 21-40 of 42

• #### Elemental concentrations of ambient particles and cause specific mortality in Santiago, Chile: a time series study ﻿

(BioMed Central, 2012)
Background: The health effects of particulate air pollution are widely recognized and there is some evidence that the magnitude of these effects vary by particle component. We studied the effects of ambient fine particles ...
• #### Estimating Causal Effects of Long-Term PM2.5 Exposure on Mortality in New Jersey ﻿

(National Institute of Environmental Health Sciences, 2016)
Background: Many studies have reported the associations between long-term exposure to PM2.5 and increased risk of death. However, to our knowledge, none has used a causal modeling approach or controlled for long-term ...
• #### Extreme Temperatures and Mortality: Assessing Effect Modification by Personal Characteristics and Specific Cause of Death in a Multi-City Case-Only Analysis ﻿

(National Institute of Environmental Health Sciences, 2006)
Background: Extremes of temperature are associated with short-term increases in daily mortality. Objectives: We set out to identify subpopulations and mortality causes with increased susceptibility to temperature extremes. ...
• #### Heat, Heat Waves, and Hospital Admissions among the Elderly in the United States, 1992–2006 ﻿

(NLM-Export, 2014)
Background: Heat-wave frequency, intensity, and duration are increasing with global climate change. The association between heat and mortality in the elderly is well documented, but less is known regarding associations ...
• #### The Impact of Sugar Cane–Burning Emissions on the Respiratory System of Children and the Elderly ﻿

(National Institute of Environmental Health Sciences, 2006)
We analyzed the influence of emissions from burning sugar cane on the respiratory system during almost 1 year in the city of Piracicaba in southeast Brazil. From April 1997 through March 1998, samples of inhalable particles ...
• #### Impacts of elevated atmospheric CO2 on nutrient content of important food crops ﻿

(Nature Publishing Group, 2015)
One of the many ways that climate change may affect human health is by altering the nutrient content of food crops. However, previous attempts to study the effects of increased atmospheric CO2 on crop nutrition have been ...
• #### Impacts of Temperature and its Variability on Mortality in New England ﻿

(2015)
Rapid buildup of greenhouse gases is expected to increase the Earth surface mean temperature, with unclear effects on temperature variability1–3. This adds urgency to better understand the direct effects of the changing ...
• #### Influenza epidemics, seasonality, and the effects of cold weather on cardiac mortality ﻿

(BioMed Central, 2012)
Background: More people die in the winter from cardiac disease, and there are competing hypotheses to explain this. The authors conducted a study in 48 US cities to determine how much of the seasonal pattern in cardiac ...
• #### Is There Adaptation in the Ozone Mortality Relationship: A Multi-City Case-Crossover Analysis ﻿

(BioMed Central, 2008)
Background: Ozone has been associated with daily mortality, mainly in the summer period. Despite the ample literature on adaptation of inflammatory and pulmonary responses to ozone, and the link, in cohort studies, between ...
• #### Long-Term Exposure to Ambient Fine Particulate Matter and Renal Function in Older Men: The Veterans Administration Normative Aging Study ﻿

(National Institute of Environmental Health Sciences, 2016)
Background: It is unknown if ambient fine particulate matter (PM2.5) is associated with lower renal function, a cardiovascular risk factor. Objective: We investigated whether long-term PM2.5 exposure was associated with ...
• #### Low-Concentration PM2.5 and Mortality: Estimating Acute and Chronic Effects in a Population-Based Study ﻿

(National Institute of Environmental Health Sciences, 2015)
Background: Both short- and long-term exposures to fine particulate matter (≤ 2.5 μm; PM2.5) are associated with mortality. However, whether the associations exist at levels below the new U.S. Environmental Protection ...
• #### A national case-crossover analysis of the short-term effect of PM2.5 on hospitalizations and mortality in subjects with diabetes and neurological disorders ﻿

(BioMed Central, 2014)
Background: Diabetes and neurological disorders are a growing burden among the elderly, and may also make them more susceptible to particulate air matter with aerodynamic diameter less than 2.5 μg (PM2.5). The same biological ...
• #### Opposing Effects of Particle Pollution, Ozone, and Ambient Temperature on Arterial Blood Pressure ﻿

(National Institute of Environmental Health Sciences, 2012)
Background: Diabetes increases the risk of hypertension and orthostatic hypotension and raises the risk of cardiovascular death during heat waves and high pollution episodes. Objective: We examined whether short-term ...
• #### Particulate air pollution and survival in a COPD cohort ﻿

(BioMed Central, 2008)
Background: Several studies have shown cross-sectional associations between long term exposure to particulate air pollution and survival in general population or convenience cohorts. Less is known about susceptibility, or ...
• #### Prenatal Air Pollution Exposure and Newborn Blood Pressure ﻿

(NLM-Export, 2015)
Background: Air pollution exposure has been associated with increased blood pressure in adults. Objective: We examined associations of antenatal exposure to ambient air pollution with newborn systolic blood pressure (SBP). ...
• #### Prenatal and Childhood Traffic-Related Pollution Exposure and Childhood Cognition in the Project Viva Cohort (Massachusetts, USA) ﻿

(NLM-Export, 2015)
Background: Influences of prenatal and early-life exposures to air pollution on cognition are not well understood. Objectives: We examined associations of gestational and childhood exposure to traffic-related pollution ...
• #### Reduction in Heart Rate Variability with Traffic and Air Pollution in Patients with Coronary Artery Disease ﻿

(National Institute of Environmental Health Sciences, 2009)
Introduction: Ambient particulate pollution and traffic have been linked to myocardial infarction and cardiac death risk. Possible mechanisms include autonomic cardiac dysfunction. Methods: In a repeated-measures study of ...
• #### The Relationship Between Ambient Air Pollution and Heart Rate Variability Differs for Individuals with Heart and Pulmonary Disease ﻿

(National Institute of Environmental Health Sciences, 2005)
Associations between concentrations of ambient fine particles [particulate matter < 2.5 μm aerodynamic diameter (PM$_{2.5}$)] and heart rate variability (HRV) have differed by study population. We examined the effects ...
• #### Short Term Effects of Particle Exposure on Hospital Admissions in the Mid-Atlantic States: A Population Estimate ﻿

(Public Library of Science, 2014)
Background: Many studies report significant associations between PM2.5 (particulate matter <2.5 micrometers) and hospital admissions. These studies mostly rely on a limited number of monitors which introduces exposure ...
• #### Short-Term Changes in Ambient Temperature and Risk of Ischemic Stroke ﻿

(S. Karger AG, 2014)
Background: Despite consistent evidence of a higher short-term risk of cardiovascular mortality associated with ambient temperature, there have been discrepant findings on the association between temperature and ischemic ...