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Geographically weighted

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https://www.readbyqxmd.com/read/27905980/temporal-evolution-of-the-risk-factors-associated-with-low-birth-weight-rates-in-brazilian-capitals-1996-2011
#1
Viviane Costa de Souza Buriol, Vânia Hirakata, Marcelo Zubaran Goldani, Clécio Homrich da Silva
OBJECTIVE: To analyze the trend of low birth weight (LBW) and its determinants in Brazilian state capitals between 1996 and 2011. We intended to determine which variables are associated with LBW during the period studied. METHODS: This is a cross-sectional study that used data from the National Information System of Live Births from 26 state capitals and Brasilia (the federal capital), divided into five geographical regions. The Average Annual Percentage of Change (AAPC) was used to assess the possible time trend in the low birth weight rates for considering all regions together and each region separately, according to each variable, and the Poisson regression was calculated in order to demonstrate time trends in low birth weight and the impact of variables (age and educational maternal level, antenatal visits, type of delivery, and gestational age) during the period...
May 3, 2016: Population Health Metrics
https://www.readbyqxmd.com/read/27903062/geographically-weighted-regression-for-modelling-the-accessibility-to-the-public-hospital-network-in-concepci%C3%A3-n-metropolitan-area-chile
#2
Marcela Martínez Bascuñán, Carolina Rojas Quezada
Accessibility models in transport geography based on geographic information systems have proven to be an effective method in determining spatial inequalities associated with public health. This work aims to model the spatial accessibility from populated areas within the Concepción metropolitan area (CMA), the second largest city in Chile. The city's public hospital network is taken into consideration with special reference to socio-regional inequalities. The use of geographically weighted regression (GWR) and ordinary least squares (OLS) for modelling accessibility with socioeconomic and transport variables is proposed...
November 22, 2016: Geospatial Health
https://www.readbyqxmd.com/read/27903052/assessing-spatial-inequalities-in-accessing-community-pharmacies-a-mixed-geographically-weighted-approach
#3
Alexander Domnich, Lucia Arata, Daniela Amicizia, Alessio Signori, Roberto Gasparini, Donatella Panatto
Geographical accessibility is an important determinant for the utilisation of community pharmacies. The present study explored patterns of spatial accessibility with respect to pharmacies in Liguria, Italy, a region with particular geographical and demographic features. Municipal density of pharmacies was proxied as the number of pharmacies per capita and per km2, and spatial autocorrelation analysis was performed to identify spatial clusters. Both non-spatial and spatial models were constructed to predict the study outcome...
November 16, 2016: Geospatial Health
https://www.readbyqxmd.com/read/27902599/could-adc-values-be-a-promising-diagnostic-criterion-for-differentiating-malignant-and-benign-hepatic-lesions-in-asian-populations-a-meta-analysis
#4
Jing Peng, Jing-Jin Li, Jiang Li, He-Wen Li, Guo-Ping Xu, Rong-Rong Jia, Xue-Ning Zhang, Yang Zhao
BACKGROUND: Liver cancer exhibits geographic and ethnic differences in its prevalence and biology, which implies that it is impractical to develop universal guidelines for all patients. Thus, a meta-analysis was conducted to identify the accuracy of apparent diffusion coefficients (ADCs) for discriminating malignant from benign liver lesions in Asians. METHODS: Eligible studies published in PubMed, Ovid, and Embase/Medline were updated onto October 2014. STATA 12...
November 2016: Medicine (Baltimore)
https://www.readbyqxmd.com/read/27898859/regional-and-seasonal-analyses-of-weights-in-growing-angus-cattle
#5
H L Bradford, B O Fragomeni, J K Bertrand, D A L Lourenco, I Misztal
This study evaluated the impact of region and season on growth in Angus seed stock. To assess geographic differences, the United States was partitioned into 9 regions based on similar climate and topography related to cow-calf production. Seasonal effects were associated with the month that animals were weighed. The American Angus Association provided growth data, and records were assigned to regions based on the owner's zip code. Most Angus cattle were in the Cornbelt, Lower Plains, Rocky Mountain, Upper Plains, and Upper South regions, with proportionally fewer Angus in Texas compared with the national cow herd...
October 2016: Journal of Animal Science
https://www.readbyqxmd.com/read/27896474/worldwide-prevalence-of-adverse-pregnancy-outcomes-among-singleton-pregnancies-after-in-vitro-fertilization-intracytoplasmic-sperm-injection-a-systematic-review-and-meta-analysis
#6
REVIEW
Jia-Bi Qin, Xiao-Qi Sheng, Di Wu, Shi-You Gao, Yi-Ping You, Tu-Bao Yang, Hua Wang
PURPOSE: The worldwide prevalence of adverse pregnancy outcomes (APOs) in singleton pregnancies after in vitro fertilization (IVF)/intracytoplasmic sperm injection (ICSI) is suggested to vary; however, a complete overview is missing. The aim of this review is to estimate the worldwide prevalence of APOs associated with IVF/ICSI singleton pregnancies. METHODS: PubMed, Google Scholar, Cochrane Libraries, and Chinese databases were searched for studies assessing APOs among IVF/ICSI singleton births through March 2016...
November 28, 2016: Archives of Gynecology and Obstetrics
https://www.readbyqxmd.com/read/27891059/ethnic-identity-attachment-and-motivation-for-weight-loss-and-exercise-among-rural-overweight-african-american-women
#7
K Bryant Smalley, Jacob C Warren, Sydney McClendon, Wilburn Peacock, Marisol Caro
Rural and minority women are disproportionately impacted by the obesity epidemic; however, little research has studied the intersection of these disparity groups. The purpose of this study was to examine the influence of racial identity on motivation for weight loss and exercise among rural, African-American women with an obesity-linked chronic disease. A total of 154 African-American women were recruited from the patient population of a Federally Qualified Health Center in the rural South to complete a questionnaire battery including the Multigroup Ethnic Identity Measure and separate assessments of motivation for weight loss and exercise...
2016: Clinical Medicine Insights. Women's Health
https://www.readbyqxmd.com/read/27887825/national-investigation-of-semi-volatile-organic-compounds-pahs-ocps-and-pcbs-in-lake-sediments-of-china-occurrence-spatial-variation-and-risk-assessment
#8
Chaocan Li, Shouliang Huo, Zhiqiang Yu, Beidou Xi, Kevin M Yeager, Zhuoshi He, Chunzi Ma, Jingtian Zhang, Fengchang Wu
In this study, a large scale investigation of semi-volatile organic compounds (SVOCs) in sediments from 52 lakes, located in five geographic regions across China, was conducted to assess sediment quality in terms of organic contaminants. Concentrations of polycyclic aromatic hydrocarbons (PAHs), organochlorine pesticides (OCPs), and polychlorinated biphenyls (PCBs) in sediment were found to range between 17.00-6,633, 0.12-45.24, and 0.03-13.99ngg(-1), respectively. Lake sediments from different regions exhibited variation in contamination levels, and in the compositions of isomers...
November 22, 2016: Science of the Total Environment
https://www.readbyqxmd.com/read/27881079/detection-of-west-nile-virus-in-wild-birds-in-tana-river-and-garissa-counties-kenya
#9
Doris Nyamwaya, Virginia Wang'ondu, Joshua Amimo, George Michuki, Moses Ogugo, Enoch Ontiri, Rosemary Sang, Johanna Lindahl, Delia Grace, Bernard Bett
BACKGROUND: West Nile fever virus is a zoonotic arboviral infection maintained in a sylvatic cycle involving mosquito vectors and birds. It is one the arboviruses whose geographical range is expanding because of climate and land use changes that enhance the densities of mosquitoes and promote mosquito-bird-human interactions. We carried out a survey to determine the reservoirs of WNV among wild birds in Tana River and Garissa counties, Kenya. METHODS: Blood samples were obtained from 361 randomly trapped wild birds...
November 23, 2016: BMC Infectious Diseases
https://www.readbyqxmd.com/read/27878838/cluster-detection-of-spatial-regression-coefficients
#10
Junho Lee, Ronald E Gangnon, Jun Zhu
Popular approaches to spatial cluster detection, such as the spatial scan statistic, are defined in terms of the responses. Here, we consider a varying-coefficient regression and spatial clusters in the regression coefficients. For varying-coefficient regression, such as the geographically weighted regression, different regression coefficients are obtained for different spatial units. It is often of interest to the practitioners to identify clusters of spatial units with distinct patterns in a regression coefficient, but there is no formal statistical methodology for that...
November 22, 2016: Statistics in Medicine
https://www.readbyqxmd.com/read/27876589/usa-hospitalizations-for-malignant-pleural-effusions-data-from-the-2012-national-inpatient-sample
#11
Niloofar Taghizadeh, Marc Fortin, Alain Tremblay
BACKGROUND: Malignant pleural effusions (MPE) are a common complication of advanced malignancy, but little is known regarding their prevalence and overall burden on a population level. METHODS: We conducted a retrospective analysis of MPE associated hospitalizations using the Healthcare Cost and Utilization Project-Nationwide Inpatient Sample, Agency for Healthcare Research and Quality (HCUP-NIS 2012). Cases were included if MPE was coded as a primary or secondary diagnosis or if an unspecified pleural effusion was coded in addition to a diagnosis of cancer with either of these being the primary diagnosis...
November 19, 2016: Chest
https://www.readbyqxmd.com/read/27872085/population-health-needs-as-predictors-of-variations-in-nhs-practice-payments-a-cross-sectional-study-of-english-general-practices-in-2013-2014-and-2014-2015
#12
Louis S Levene, Richard Baker, Andrew Wilson, Nicola Walker, Kambiz Boomla, M John G Bankart
BACKGROUND: NHS general practice payments in England include pay for performance elements and a weighted component designed to compensate for workload, but without measures of specific deprivation or ethnic groups. AIM: To determine whether population factors related to health needs predicted variations in NHS payments to individual general practices in England. DESIGN AND SETTING: Cross-sectional study of all practices in England, in financial years 2013-2014 and 2014-2015...
November 21, 2016: British Journal of General Practice: the Journal of the Royal College of General Practitioners
https://www.readbyqxmd.com/read/27871303/geographically-weighted-regression-of-knowledge-and-behaviour-determinants-to-anti-malarial-recommending-and-dispensing-practice-among-medicine-retailers-in-western-kenya-capacitating-targeted-interventions
#13
Andria Rusk, Linda Highfield, J Michael Wilkerson, Melissa Harrell, Andrew Obala, Benjamin Amick
BACKGROUND: Most patients with malaria seek treatment first in retail drug shops. Myriad studies have examined retailer behaviours and characteristics to understand the determinants to these behaviours. Geospatial methods are helpful in discovering if geographic location plays a role in the relationship between determinants and outcomes. This study aimed to discover if spatial autocorrelation exists in the relationship between determinants and retailer behaviours, and to provide specific geographic locations and target behaviours for tailoring future interventions...
November 21, 2016: Malaria Journal
https://www.readbyqxmd.com/read/27869383/-geographic-distribution-of-perinatal-mortality-due-to-congenital-malformations-in-colombia-1999-2008-an-analysis-of-vital-statistics-data
#14
Sandra Patricia Misnaza, Claudia Patricia Roncancio, Isabel Cristina Peña, Franklin Edwin Prieto
INTRODUCTION: During 2012, 13% of the deaths worldwide in children under the age of 28 days were due to congenital malformations. In Colombia, congenital malformations are the second leading cause of infant mortality. Objective: To determine the geographical distribution of extended perinatal mortality due to congenital malformations in Colombia between 1999 and 2008. Materials and methods: We conducted a cross-sectional study. We revised all death certificates issued between 1999 and 2008...
September 1, 2016: Biomédica: Revista del Instituto Nacional de Salud
https://www.readbyqxmd.com/read/27864357/global-region-of-birth-is-an-independent-risk-factor-for-type-2-diabetes-in-stockholm-sweden
#15
Liselotte Schäfer Elinder, Shawn Hakimi, Anton Lager, Emma Patterson
BACKGROUND: In Stockholm, type 2 diabetes (T2D) is a public health concern and much more prevalent in areas with a high proportion of foreign-born individuals. One in five individuals in Stockholm County are born outside of Sweden, and we therefore investigated if global region of birth was associated with diabetes risk, adjusting for established risk factors. METHODS: Cross-sectional data from the population-based Stockholm Public Health Survey 2010 (N = 69 115) was combined with registry-based information on country of birth grouped into eight global geographical regions...
November 17, 2016: European Journal of Public Health
https://www.readbyqxmd.com/read/27864296/a-mechanistic-investigation-of-thrombotic-microangiopathy-associated-with-intravenous-abuse-of-opana-er
#16
Ryan Hunt, Ayla Yalamanoglu, James Tumlin, Tal Schiller, Jin Hyen Baek, Andrew Wu, Agnes B Fogo, Haichun Yang, Edward Wong, Peter Miller, Paul W Buehler, Chava Kimchi-Sarfaty
Since 2012, a number of case reports have described the occurrence of thrombotic microangiopathy (TMA) following intravenous abuse of extended release oxymorphone hydrochloride (Opana ER), an oral opioid for long-term treatment of chronic pain. Here, we present unique clinical features of three patients and investigate intravenous exposure to the tablet's inert ingredients as a possible causal mechanism. Guinea pigs were used as an animal model to understand the hematopathologic and nephrotoxic potential of the inert ingredient mixture (termed here as PEO+) which primarily contains high molecular weight polyethylene oxide (HMW PEO)...
November 18, 2016: Blood
https://www.readbyqxmd.com/read/27858260/an-assessment-of-site-suitability-for-marina-construction-in-istanbul-turkey-using-gis-and-ahp-multicriteria-decision-analysis
#17
Mustafa Umit Gumusay, Gokalp Koseoglu, Tolga Bakirman
Marinas play a key role in sea transportation and tourism. The problem of an insufficient marina capacity has revealed in terms of sea traffic due to the demographic structure and increasing tourism potential of Istanbul which is the biggest metropolitan city of Turkey and has around 600-km-long coastline. Therefore, the study area is mainly focused on the Marmara Sea shoreline of Istanbul. Rather than traditional methods, a rapid and cost-effective solution which considers natural and urban environment conditions is essential to satisfy the need for a marina site selection...
December 0: Environmental Monitoring and Assessment
https://www.readbyqxmd.com/read/27853179/spatial-analysis-of-pahs-in-soils-along-an-urban-suburban-rural-gradient-scale-effect-distribution-patterns-diffusion-and-influencing-factors
#18
Chi Peng, Meie Wang, Weiping Chen
Spatial statistical methods including Cokriging interpolation, Morans I analysis, and geographically weighted regression (GWR) were used for studying the spatial characteristics of polycyclic aromatic hydrocarbon (PAH) accumulation in urban, suburban, and rural soils of Beijing. The concentrations of PAHs decreased spatially as the level of urbanization decreased. Generally, PAHs in soil showed two spatial patterns on the regional scale: (1) regional baseline depositions with a radius of 16.5 km related to the level of urbanization and (2) isolated pockets of soil contaminated with PAHs were found up to around 3...
November 17, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27852605/the-local-food-environment-and-fruit-and-vegetable-intake-a-geographically-weighted-regression-approach-in-the-oriel-study
#19
Christelle Clary, Daniel J Lewis, Ellen Flint, Neil R Smith, Yan Kestens, Steven Cummins
Studies that explore associations between the local food environment and diet routinely use global regression models, which assume that relationships are invariant across space, yet such stationarity assumptions have been little tested. We used global and geographically weighted regression models to explore associations between the residential food environment and fruit and vegetable intake. Analyses were performed in 4 boroughs of London, United Kingdom, using data collected between April 2012 and July 2012 from 969 adults in the Olympic Regeneration in East London Study...
November 16, 2016: American Journal of Epidemiology
https://www.readbyqxmd.com/read/27848219/the-valuation-of-informal-care-in-cost-of-illness-studies-a-systematic-review
#20
REVIEW
Juan Oliva-Moreno, Marta Trapero-Bertran, Luz Maria Peña-Longobardo, Raúl Del Pozo-Rubio
BACKGROUND: There is a growing interest in incorporating informal care in cost-of-illness studies as a relevant part of the economic impact of some diseases. OBJECTIVE: The aim of this paper was to review the recent literature valuating the costs of informal care in a group of selected diseases from 2005 to 2015. METHODS: We carried out a systematic review on the economic impact of informal care, focusing on six selected diseases: arthritis or osteoarthritis, cancer, dementia, mental diseases, multiple sclerosis and stroke...
November 15, 2016: PharmacoEconomics
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