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https://www.readbyqxmd.com/read/28639058/geospatial-analysis-of-drug-poisoning-deaths-involving-heroin-in-the-usa-2000-2014
#1
Kathleen Stewart, Yanjia Cao, Margaret H Hsu, Eleanor Artigiani, Eric Wish
We investigate the geographic patterns of drug poisoning deaths involving heroin by county for the USA from 2000 to 2014. The county-level patterns of mortality are examined with respect to age-adjusted rates of death for different classes of urbanization and racial and ethnic groups, while rates based on raw counts of drug poisoning deaths involving heroin are estimated for different age groups and by gender. To account for possible underestimations in these rates due to small areas or small numbers, spatial empirical Baye's estimation techniques have been used to smooth the rates of death and alleviate underestimation when analyzing spatial patterns for these different groups...
June 21, 2017: Journal of Urban Health: Bulletin of the New York Academy of Medicine
https://www.readbyqxmd.com/read/28637558/travel-time-influences-readmission-risk-geospatial-mapping-of-surgical-readmissions
#2
Florence E Turrentine, Patrick J Buckley, Min-Woong Sohn, Michael D Williams
The University of Virginia (UVA) has recently become an Accountable Care Organization (ACO), intensifying efforts to provide better care for individuals. UVA's ACO population resides across the entire Commonwealth, with a large percentage of patients living in rural areas. To provide better health for this population, the central tenet of the ACO mission, we identified geographic risk factors influencing hospital readmission. We analyzed the relationship between the distance of patients' residence to the nearest hospital and 30-day readmission in general surgery patients...
June 1, 2017: American Surgeon
https://www.readbyqxmd.com/read/28634777/healthy-and-unhealthy-food-prices-across-neighborhoods-and-their-association-with-neighborhood-socioeconomic-status-and-proportion-black-hispanic
#3
David M Kern, Amy H Auchincloss, Lucy F Robinson, Mark F Stehr, Genevieve Pham-Kanter
This paper evaluates variation in food prices within and between neighborhoods to improve our understanding of access to healthy foods in urbanized areas and potential economic incentives and barriers to consuming a higher-quality diet. Prices of a selection of healthier foods (dairy, fruit juice, and frozen vegetables) and unhealthy foods (soda, sweets, and salty snacks) were obtained from 1953 supermarkets across the USA during 2009-2012 and were linked to census block group socio-demographics. Analyses evaluated associations between neighborhood SES and proportion Black/Hispanic and the prices of healthier and unhealthy foods, and the relative price of healthier foods compared with unhealthy foods (healthy-to-unhealthy price ratio)...
June 20, 2017: Journal of Urban Health: Bulletin of the New York Academy of Medicine
https://www.readbyqxmd.com/read/28634290/geospatial-analysis-of-nonmedical-vaccine-exemptions-and-pertussis-outbreaks-in-the-united-states
#4
Carlin Aloe, Martin Kulldorff, Barry R Bloom
Because of increased numbers of recorded pertussis cases in the United States, this study sought to understand the role of nonmedical vaccine exemptions and waning immunity may have had on the resurgence of pertussis in the United States at the community level. We used geospatial scan statistics, SaTScan, version 9.4, to analyze nonmedical vaccine exemptions of children entering kindergarten in 2011 and 2012 and reported pertussis cases in 2012 for children in age groups 5 years and younger and 10 to 14 years...
June 20, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28629406/geospatial-and-temporal-associations-of-getah-virus-circulation-among-pigs-and-horses-around-the-perimeter-of-outbreaks-in-japanese-racehorses-in-2014-and-2015
#5
Hiroshi Bannai, Manabu Nemoto, Hidekazu Niwa, Satoshi Murakami, Koji Tsujimura, Takashi Yamanaka, Takashi Kondo
BACKGROUND: We studied a recent epizootic of Getah virus infection among pigs in the southern part of Ibaraki Prefecture and the northern part of Chiba Prefecture, Japan, focusing on its possible association with outbreaks in racehorses in 2014 and 2015. The genomic sequence of a Getah virus strain from an infected pig was analyzed to evaluate the degree of identity with the strains from horses. RESULTS: Sera were collected from pigs from September to December 2012 to 2015 in south Ibaraki (380 pigs in 29 batches), and from September to December 2010 to 2015 in north Chiba (538 pigs in 104 batches)...
June 19, 2017: BMC Veterinary Research
https://www.readbyqxmd.com/read/28618588/multiscale-model-for-pedestrian-and-infection-dynamics-during-air-travel
#6
Sirish Namilae, Pierrot Derjany, Anuj Mubayi, Mathew Scotch, Ashok Srinivasan
In this paper we develop a multiscale model combining social-force-based pedestrian movement with a population level stochastic infection transmission dynamics framework. The model is then applied to study the infection transmission within airplanes and the transmission of the Ebola virus through casual contacts. Drastic limitations on air-travel during epidemics, such as during the 2014 Ebola outbreak in West Africa, carry considerable economic and human costs. We use the computational model to evaluate the effects of passenger movement within airplanes and air-travel policies on the geospatial spread of infectious diseases...
May 2017: Physical Review. E
https://www.readbyqxmd.com/read/28616387/biosecurity-and-geospatial-analysis-of-mycoplasma-infections-in-poultry-farms-at-al-jabal-al-gharbi-region-of-libya
#7
Abdulwahab Kammon, Paolo Mulatti, Monica Lorenzetto, Nicola Ferre, Monier Sharif, Ibrahim Eldaghayes, Abdunaser Dayhum
Geospatial database of farm locations and biosecurity measures are essential to control disease outbreaks. A study was conducted to establish geospatial database on poultry farms in Al-Jabal Al-Gharbi region of Libya, to evaluate the biosecurity level of each farm and to determine the seroprevalence of mycoplasma and its relation to biosecurity level. A field team of 7 Veterinarians belongs to the National Center of Animal Health was assigned for data recording and collection of blood samples. Personal information of the producers, geographical locations, biosecurity measures and description of the poultry farms were recorded...
2017: Open veterinary journal
https://www.readbyqxmd.com/read/28615192/access-to-hyperacute-stroke-services-across-canadian-provinces-a-geospatial-analysis
#8
Prasanna Venkatesan Eswaradass, Richard H Swartz, Jamey Rosen, Michael D Hill, M Patrice Lindsay
BACKGROUND: Canada's vast geography creates challenges for ensuring prompt transport to hospital of patients who have had a stroke. We sought to determine the proportion of people across various Canadian provinces for whom hyperacute stroke services are accessible within evidence-based time targets. METHODS: We calculated, for the 8 provinces with available data, drive-time polygons on a map of Canada that delineated the area around stroke centres and emergency medical services (EMS) base centres to which one can drive in 3...
June 14, 2017: CMAJ Open
https://www.readbyqxmd.com/read/28614377/spatial-distribution-of-child-pedestrian-injuries-along-census-tract-boundaries-implications-for-identifying-area-based-correlates
#9
Jacqueline W Curtis
Census tracts are often used to investigate area-based correlates of a variety of health outcomes. This approach has been shown to be valuable in understanding the ways that health is shaped by place and to design appropriate interventions that account for community-level processes. Following this line of inquiry, it is common in the study of pedestrian injuries to aggregate the point level locations of these injuries to the census tracts in which they occur. Such aggregation enables investigation of the relationships between a range of socioeconomic variables and areas of notably high or low incidence...
2017: PloS One
https://www.readbyqxmd.com/read/28613257/dissemination-of-chronic-disease-self-management-education-cdsme-programs-in-the-united-states-intervention-delivery-by-rurality
#10
Matthew Lee Smith, Samuel D Towne, Angelica Herrera-Venson, Kathleen Cameron, Kristie P Kulinski, Kate Lorig, Scott A Horel, Marcia G Ory
Background: Alongside the dramatic increase of older adults in the United States (U.S.), it is projected that the aging population residing in rural areas will continue to grow. As the prevalence of chronic diseases and multiple chronic conditions among adults continues to rise, there is additional need for evidence-based interventions to assist the aging population to improve lifestyle behaviors, and self-manage their chronic conditions. The purpose of this descriptive study was to identify the geospatial dissemination of Chronic Disease Self-Management Education (CDSME) Programs across the U...
June 14, 2017: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/28609464/a-multi-scale-evaluation-of-pack-stock-effects-on-subalpine-meadow-plant-communities-in-the-sierra-nevada
#11
Steven R Lee, Eric L Berlow, Steven M Ostoja, Matthew L Brooks, Alexandre Génin, John R Matchett, Stephen C Hart
We evaluated the influence of pack stock (i.e., horse and mule) use on meadow plant communities in Sequoia and Yosemite National Parks in the Sierra Nevada of California. Meadows were sampled to account for inherent variability across multiple scales by: 1) controlling for among-meadow variability by using remotely sensed hydro-climatic and geospatial data to pair stock use meadows with similar non-stock (reference) sites, 2) accounting for within-meadow variation in the local hydrology using in-situ soil moisture readings, and 3) incorporating variation in stock use intensity by sampling across the entire available gradient of pack stock use...
2017: PloS One
https://www.readbyqxmd.com/read/28602091/assessing-spatial-variability-of-grape-skin-flavonoids-at-the-vineyard-scale-based-on-plant-water-status-mapping
#12
Luca Brillante, Johann Martinez-Luscher, Runze Yu, Cassandra M Plank, Luis A Sanchez, Terrence Bates, Charles Brenneman, A Oberholster, Sahap Kaan Kurtural
Plant water stress affects grape (Vitis vinifera L. cv. Cabernet Sauvignon) berry composition and is variable in space due to variations in the physical environment at the growing site. We monitored the natural variability of grapevine water stress by stem water potential (ψstem) and leaf gas exchange in an equi-distant grid in a commercial vineyard. Spatial differences were measured and related to topographical variation by modeling. Geospatial analysis and clustering allowed to differentiate the vineyard block into two distinct zones having severe and moderate water stress where it varied by 0...
June 12, 2017: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/28601785/pollution-and-regional-variations-of-lung-cancer-mortality-in-the-united-states
#13
Justin Xavier Moore, Tomi Akinyemiju, Henry E Wang
INTRODUCTION: The aims of this study were to identify counties in the United States (US) with high rates of lung cancer mortality, and to characterize the associated community-level factors while focusing on particulate-matter pollution. METHODS: We performed a descriptive analysis of lung cancer deaths in the US from 2004 through 2014. We categorized counties as "clustered" or "non-clustered" - based on whether or not they had high lung cancer mortality rates - using novel geospatial autocorrelation methods...
June 8, 2017: Cancer Epidemiology
https://www.readbyqxmd.com/read/28601512/epidemiology-of-fentanyl-involved-drug-overdose-deaths-a-geospatial-retrospective-study-in-rhode-island-usa
#14
Brandon D L Marshall, Maxwell S Krieger, Jesse L Yedinak, Patricia Ogera, Priya Banerjee, Nicole E Alexander-Scott, Josiah D Rich, Traci C Green
BACKGROUND: We conducted an epidemiological investigation of fentanyl and non-fentanyl overdose deaths in Rhode Island to inform overdose prevention efforts. METHODS: All drug overdose deaths occurring in Rhode Island between January 1, 2014 and September 30, 2016 were included. Overdose circumstances and decedent characteristics were ascertained from medical examiner files. Toxicological reports provided quantification of fentanyl and metabolites. ArcGIS was used to map exact overdose locations...
June 7, 2017: International Journal on Drug Policy
https://www.readbyqxmd.com/read/28601018/geospatial-evaluation-of-lead-bioaccessibility-and-distribution-for-site-specific-prediction-of-threshold-limits
#15
Jennifer A Bower, Sydney Lister, Garrett Hazebrouck, Nicolas Perdrial
Recent work identified the need for site-specific Pb bioaccessibility evaluation and scaled contaminant modeling. Pb heterogeneity has made bioaccessibility characterization difficult, and complicated distribution models. Using field testing, bioaccessibility measurement, Integrated Exposure Uptake and Biokinetic (IEUBK) modeling, and geospatial techniques, we propose a framework for conducting applied risk-based, multiscale assessment. This framework was tested and implemented in Burlington, VT, an area of old housing stock and high Pb burden (up to 15 000 mg kg(-1)) derived primarily from paint...
June 7, 2017: Environmental Pollution
https://www.readbyqxmd.com/read/28594574/a-geospatial-epidemiologic-analysis-of-nontuberculous-mycobacterial-infection-an-ecological-study-in-colorado
#16
Ettie M Lipner, David Knox, Joshua French, Jordan Rudman, Michael Strong, James L Crooks
RATIONALE: Nontuberculous mycobacteria (NTM) are ubiquitous environmental microorganisms. Infection is thought to result primarily from exposure to soil and/or water sources. NTM disease prevalence varies greatly by geographic region, but the geospatial factors influencing this variation remain unclear. OBJECTIVES: To identify socio-demographic and environmental ecologic risk factors associated with NTM infection and disease in Colorado. METHODS: We conducted an ecological study combining data from patients with a diagnosis of NTM disease from National Jewish Health's Electronic Medical Record database and zip code-level socio-demographic and environmental exposure data obtained from the U...
June 8, 2017: Annals of the American Thoracic Society
https://www.readbyqxmd.com/read/28593561/application-of-a-gis-remote-sensing-based-approach-for-predicting-groundwater-potential-zones-using-a-multi-criteria-data-mining-methodology
#17
Kehinde Anthony Mogaji, Hwee San Lim
This study integrates the application of Dempster-Shafer-driven evidential belief function (DS-EBF) methodology with remote sensing and geographic information system techniques to analyze surface and subsurface data sets for the spatial prediction of groundwater potential in Perak Province, Malaysia. The study used additional data obtained from the records of the groundwater yield rate of approximately 28 bore well locations. The processed surface and subsurface data produced sets of groundwater potential conditioning factors (GPCFs) from which multiple surface hydrologic and subsurface hydrogeologic parameter thematic maps were generated...
July 2017: Environmental Monitoring and Assessment
https://www.readbyqxmd.com/read/28592572/impact-of-iron-fortification-on-the-geospatial-patterns-of-malaria-and-non-malaria-infection-risk-among-young-children-a-secondary-spatial-analysis-of-clinical-trial-data-from-ghana
#18
Ashley M Aimone, Patrick Brown, Seth Owusu-Agyei, Stanley H Zlotkin, Donald C Cole
OBJECTIVES: Patterns of infection among children with varying levels of iron status in a malaria endemic area may vary spatially in ways requiring integrated infection and iron deficiency control programmes. The objective of this secondary analysis was to determine the geospatial factors associated with malaria and non-malaria infection status among young Ghanaian children at the end of a 5-month iron intervention trial. DESIGN: Cluster-randomised controlled trial...
June 6, 2017: BMJ Open
https://www.readbyqxmd.com/read/28590351/a-novel-approach-to-optimal-placement-of-new-trauma-centers-within-an-existing-trauma-system-using-geospatial-mapping
#19
Michael A Horst, Frederick B Rogers, Brian W Gross, Alan D Cook, Turner M Osler, Eric H Bradburn
BACKGROUND: Trauma system expansion is a complex process often governed by financial and health care system imperatives. We sought to propose a new, informed approach to trauma system expansion through the use of geospatial mapping. We hypothesized that geospatial mapping set to specific parameters could effectively identify optimal placement of new trauma centers (TC) within an existing trauma system. METHODS: We used Pennsylvania Trauma Systems Foundation (PTSF) registry data of adult (age ≥ 15) trauma for calendar years 2003-2015 (n=408,432), hospital demographics, road networks, and US Census data files...
June 6, 2017: Journal of Trauma and Acute Care Surgery
https://www.readbyqxmd.com/read/28589567/particulate-matter-air-pollution-and-liver-cancer-survival
#20
Huiyu Deng, Sandrah P Eckel, Lihua Liu, Frederick W Lurmann, Myles G Cockburn, Frank D Gilliland
Particulate matter (PM) air pollution exposure has been associated with cancer incidence and mortality especially with lung cancer. The liver is another organ possibly affected by PM due to its role in detoxifying xenobiotics absorbed from PM. Various studies have investigated the mechanistic pathways between inhaled pollutants and liver damage, cancer incidence, and tumor progression. However, little is known about the effects of PM on liver cancer survival. Twenty thousand, two hundred and twenty-one California Cancer Registry patients with hepatocellular carcinoma (HCC) diagnosed between 2000 and 2009 were used to examine the effect of exposure to ambient PM with diameter <2...
June 7, 2017: International Journal of Cancer. Journal International du Cancer
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