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Article Reference Troff document (with manpage macros)Exposure to Particulate Matter and Adverse Birth Outcomes: A Comprehensive Review and Meta Analysis.
Increasing number of studies have investigated the impact of maternal exposure to air pollution during pregnancy and adverse birth outcomes, particularly low birth weight (LBW, <2,500 g at birth) and preterm birth (PTB, <37 completed weeks of gestation). We performed a comprehensive review of the peer-reviewed literature and a meta-analysis to quantify the association between maternal exposure to particulate matter with aerodynamic diameter 2.5 and 10 μm (PM 2.5  and PM 10 ) during pregnancy and the risk of LBW and PTB. We identified 20 peer-reviewed articles providing quantitative estimate of exposure and outcome that met our selection criteria. There was significant heterogeneity between studies, particularly for findings related to PM 10  exposure (LBW,  I -squared 54%,  p  = 0.01; PTB,  I -squared = 73%,  p  < 0.01). Results from random-effect meta-analysis suggested a 9% increase in risk of LBW associated with a 10-μg/m 3  increase in PM 2.5  (combined odds ratios (OR), 1.09; 95% confidence interval (CI), 0.90–1.32), but our 95% CI included the null value. We estimated a 15% increase in risk of PTB for each 10-μg/m 3  increase in PM 2.5  (combined OR, 1.15; CI, 1.14–1.16). The magnitude of risk associated with PM 10  exposure was smaller (2% per 10-μg/m 3  increase) and similar in size for both LBW and PTB, neither reaching formal statistical significance. We observed no significant publication bias, with  p  > 0.05 based on both Begg's and Egger's bias tests. Our results suggest that maternal exposure to PM, particularly PM 2.5  may have adverse effect on birth outcomes. Additional mechanistic studies are needed to understand the underlying mechanisms for this association.
Located in MPRC People / Amir Sapkota, Ph.D. / Amir Sapkota Publications
Article Reference Troff document (with manpage macros)Environmental Justice and Infectious Disease: Gaps, Issues, and Research Needs
The purpose of this article is to examine the relationship between environmental changes and infectious diseases and their impact on health in environmental justice (EJ) communities. The evolution of EJ science and research is contingent upon an integrated approach that takes into account social processes and environmental changes to address the burden of infectious diseases in EJ communities. We recognize that infectious disease and environmental justice is novel and calls for more research in this area, especially as the focus of public health shifts towards an ecologic and social approach to disease prevention. We attempt to explore in further detail how environmental changes such as urbanization, agriculture, and climate variability could potentially influence pathogen dynamics, vector transmission, host susceptibility, and disease outcomes among environmental justice populations.
Located in MPRC People / Sacoby Wilson, Ph.D., M.S. / Sacoby Wilson Publications
Person C headerDevon Payne-Sturges, Dr.P.H.
Located in MPRC People
Article Reference Troff document (with manpage macros)Case-crossover analysis of short-term particulate matter exposures and stroke in the health professionals follow-up study
  BACKGROUND: Stroke is a leading cause of morbidity and mortality in the United States. Associations between short-term exposures to particulate matter (PM) air pollution and stroke are inconsistent. Many prior studies have used administrative and hospitalization databases where misclassification of the type and timing of the stroke event may be problematic. METHODS: In this case-crossover study, we used a nationwide kriging model to examine short-term ambient exposure to PM10 and PM2.5 and risk of ischemic and hemorrhagic stroke among men enrolled in the Health Professionals Follow-up Study. Conditional logistic regression models were used to obtain estimates of odds ratios (OR) and 95% confidence intervals (CI) associated with an interquartile range (IQR) increase in PM2.5 or PM10. Lag periods up to 3 days prior to the stroke event were considered in addition to a 4-day average. Stratified models were used to examine effect modification by patient characteristics. RESULTS: Of the 727 strokes that occurred between 1999 and 2010, 539 were ischemic and 122 were hemorrhagic. We observed positive statistically significant associations between PM10 and ischemic stroke (ORlag0-3 = 1.26; 95% CI: 1.03-1.55 per IQR increase [14.46 μg/m3]), and associations were elevated for nonsmokers, aspirin nonusers, and those without a history of high cholesterol. However, we observed no evidence of a positive association between short-term exposure to PM and hemorrhagic stroke or between PM2.5 and ischemic stroke in this cohort. CONCLUSIONS: Our study provides evidence that ambient PM10 may be associated with higher risk of ischemic stroke and highlights that ischemic and hemorrhagic strokes are heterogeneous outcomes that should be treated as such in analyses related to air pollution.
Located in MPRC People / Robin Puett, Ph.D. / Robin Puett Publications
Article ReferenceA Conversation with Maureen Cropper
This article presents an interview with environmental economist Maureen L. Cropper. Maureen completed her Ph.D. at Cornell University and subsequently held positions at the University of California, Riverside, and the University of Southern California. At Riverside, she moved from monetary economics to environmental economics. She then landed at the University of Maryland, where she is a still a professor. She has taken on leadership roles in numerous institutional settings, including the US National Academy of Sciences and the US Environmental Protection Agency (EPA) Science Advisory Board. Her contributions to environmental economics have been groundbreaking and extensive. Together with many collaborators—including former students and colleagues at the University of Maryland, World Bank, EPA, and Resources for the Future—Maureen has produced a body of work that spans theory, methods, and empirical applied economics. Her work covers the environment, energy, climate change, and transportation in both the United States and developing countries.
Located in MPRC People / Maureen Cropper, Ph.D. / Maureen Cropper Publications
Brian Thiede, The Pennsylvania State University
It’s Raining Babies? Flooding and Fertility Choices in Bangladesh
Located in Coming Up
File Troff document (with manpage macros)The Long-Term Effects of Early Lead Exposure: Evidence from a Case of Environmental Negligence
Sergio Urzua, University of Maryland; Tomás Rau, Pontificia Universidad Católica de Chile; Loreto Reyes, Ministry of Finance, Chile; 2013-015
Located in Research / Working Papers / WP Documents
File Troff document (with manpage macros)Gaming in Air Pollution Data? Lessons from China
Ginger Zhe Jin, University of Maryland, et al.; 2013-011
Located in Research / Working Papers / WP Documents
Colloquium - Population and Environment, Robert Engelman - The Worldwatch Institute
Science, Population and the Environment: What Is, What Could Be
Located in Coming Up
Bhargava examines population impact on groundwater in India
Absence of healthcare and family planning services crucial
Located in News