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International Journal of Health Geographics

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https://www.readbyqxmd.com/read/30217207/spatial-analyzes-of-hla-data-in-rio-grande-do-sul-south-brazil-genetic-structure-and-possible-correlation-with-autoimmune-diseases
#1
Juliano André Boquett, Marcelo Zagonel-Oliveira, Luis Fernando Jobim, Mariana Jobim, Luiz Gonzaga, Maurício Roberto Veronez, Nelson Jurandi Rosa Fagundes, Lavínia Schüler-Faccini
BACKGROUND: HLA genes are the most polymorphic of the human genome and have distinct allelic frequencies in populations of different geographical regions of the world, serving as genetic markers in ancestry studies. In addition, specific HLA alleles may be associated with various autoimmune and infectious diseases. The bone marrow donor registry in Brazil is the third largest in the world, and it counts with genetic typing of HLA-A, -B, and -DRB1. Since 1991 Brazil has maintained the DATASUS database, a system fed with epidemiological and health data from compulsory registration throughout the country...
September 14, 2018: International Journal of Health Geographics
https://www.readbyqxmd.com/read/30139378/a-multi-modal-relative-spatial-access-assessment-approach-to-measure-spatial-accessibility-to-primary-care-providers
#2
Yan Lin, Neng Wan, Sagert Sheets, Xi Gong, Angela Davies
Two-step floating catchment area (2SFCA) methods that account for multiple transportation modes provide more realistic accessibility representation than single-mode methods. However, the use of the impedance coefficient in an impedance function (e.g., Gaussian function) introduces uncertainty to 2SFCA results. This paper proposes an enhancement to the multi-modal 2SFCA methods through incorporating the concept of a spatial access ratio (SPAR) for spatial access measurement. SPAR is the ratio of a given place's access score to the mean of all access scores in the study area...
August 23, 2018: International Journal of Health Geographics
https://www.readbyqxmd.com/read/30071864/analysis-of-big-patient-mobility-data-for-identifying-medical-regions-spatio-temporal-characteristics-and-care-demands-of-patients-on-the-move
#3
Caglar Koylu, Selman Delil, Diansheng Guo, Rahmi Nurhan Celik
BACKGROUND: Patient mobility can be defined as a patient's movement or utilization of a health care service located in a place or region other than the patient's place of residence. Mobility provides freedom to patients to obtain health care from providers across regions and even countries. It is essential to monitor patient choices in order to maintain the quality standards and responsiveness of the health system, otherwise, the health system may suffer from geographic disparities in the accessibility to quality and responsive health care...
August 2, 2018: International Journal of Health Geographics
https://www.readbyqxmd.com/read/30064506/evaluation-of-geoimputation-strategies-in-a-large-case-study
#4
Naci Dilekli, Amanda E Janitz, Janis E Campbell, Kirsten M de Beurs
BACKGROUND: Health data usually has missing or incomplete location information, which impacts the quality of research. Geoimputation methods are used by health professionals to increase the spatial resolution of address information for more accurate analyses. The objective of this study was to evaluate geo-imputation methods with respect to the demographic and spatial characteristics of the data. METHODS: We evaluated four geoimputation methods for increasing spatial resolution of records with known locational information at a coarse level...
July 31, 2018: International Journal of Health Geographics
https://www.readbyqxmd.com/read/30064435/domestic-gardens-and-self-reported-health-a-national-population-study
#5
Paul Brindley, Anna Jorgensen, Ravi Maheswaran
BACKGROUND: There is a growing recognition of the health benefits of the natural environment. Whilst domestic gardens account for a significant proportion of greenspace in urban areas, few studies, and no population level studies, have investigated their potential health benefits. With gardens offering immediate interaction with nature on our doorsteps, we hypothesise that garden size will affect general health-with smaller domestic gardens associated with poorer health. METHODS: A small area ecological design was undertaken using two separate analyses based on data from the 2001 and 2011 UK census...
July 31, 2018: International Journal of Health Geographics
https://www.readbyqxmd.com/read/30055616/capturing-exposure-in-environmental-health-research-challenges-and-opportunities-of-different-activity-space-models
#6
Tiina E Laatikainen, Kamyar Hasanzadeh, Marketta Kyttä
BACKGROUND: The built environment health promotion has attracted notable attention across a wide spectrum of health-related research over the past decade. However, the results about the contextual effects on health and PA are highly heterogeneous. The discrepancies between the results can potentially be partly explained by the diverse use of different spatial units of analysis in assessing individuals' exposure to various environment characteristics. This study investigated whether different residential and activity space units of analysis yield distinct results regarding the association between the built environment and health...
July 28, 2018: International Journal of Health Geographics
https://www.readbyqxmd.com/read/30049275/using-google-location-history-data-to-quantify-fine-scale-human-mobility
#7
Nick Warren Ruktanonchai, Corrine Warren Ruktanonchai, Jessica Rhona Floyd, Andrew J Tatem
BACKGROUND: Human mobility is fundamental to understanding global issues in the health and social sciences such as disease spread and displacements from disasters and conflicts. Detailed mobility data across spatial and temporal scales are difficult to collect, however, with movements varying from short, repeated movements to work or school, to rare migratory movements across national borders. While typical sources of mobility data such as travel history surveys and GPS tracker data can inform different typologies of movement, almost no source of readily obtainable data can address all types of movement at once...
July 27, 2018: International Journal of Health Geographics
https://www.readbyqxmd.com/read/29996876/capturing-the-spatial-variability-of-hiv-epidemics-in-south-africa-and-tanzania-using-routine-healthcare-facility-data
#8
Diego F Cuadros, Benn Sartorius, Chris Hall, Adam Akullian, Till Bärnighausen, Frank Tanser
BACKGROUND: Large geographical variations in the intensity of the HIV epidemic in sub-Saharan Africa call for geographically targeted resource allocation where burdens are greatest. However, data available for mapping the geographic variability of HIV prevalence and detecting HIV 'hotspots' is scarce, and population-based surveillance data are not always available. Here, we evaluated the viability of using clinic-based HIV prevalence data to measure the spatial variability of HIV in South Africa and Tanzania...
July 11, 2018: International Journal of Health Geographics
https://www.readbyqxmd.com/read/29980207/validity-of-environmental-audits-using-gigapan-%C3%A2-and-google-earth-technology
#9
Erica Twardzik, Cathy Antonakos, Ross Baiers, Tamara Dubowitz, Philippa Clarke, Natalie Colabianchi
BACKGROUND: Health behaviors are shaped by the context in which people live. However, documenting environmental context has remained a challenge. More specifically, direct observation techniques require large investments in time and resources and auditing the environment through web-based platforms has limited stability in spatio-temporal imagery. This study examined the validity of a new methodology, using GigaPan® imagery, where we took photos locally and, stitched them together using GigaPan® technology, and quantified environmental attributes from the resulting panoramic photo...
July 6, 2018: International Journal of Health Geographics
https://www.readbyqxmd.com/read/29973196/geospatial-blockchain-promises-challenges-and-scenarios-in-health-and-healthcare
#10
EDITORIAL
Maged N Kamel Boulos, James T Wilson, Kevin A Clauson
A PubMed query run in June 2018 using the keyword 'blockchain' retrieved 40 indexed papers, a reflection of the growing interest in blockchain among the medical and healthcare research and practice communities. Blockchain's foundations of decentralisation, cryptographic security and immutability make it a strong contender in reshaping the healthcare landscape worldwide. Blockchain solutions are currently being explored for: (1) securing patient and provider identities; (2) managing pharmaceutical and medical device supply chains; (3) clinical research and data monetisation; (4) medical fraud detection; (5) public health surveillance; (6) enabling truly public and open geo-tagged data; (7) powering many Internet of Things-connected autonomous devices, wearables, drones and vehicles, via the distributed peer-to-peer apps they run, to deliver the full vision of smart healthy cities and regions; and (8) blockchain-enabled augmented reality in crisis mapping and recovery scenarios, including mechanisms for validating, crediting and rewarding crowdsourced geo-tagged data, among other emerging use cases...
July 5, 2018: International Journal of Health Geographics
https://www.readbyqxmd.com/read/29970117/social-and-physical-environmental-correlates-of-independent-mobility-in-children-a-systematic-review-taking-sex-gender-differences-into-account
#11
REVIEW
Isabel Marzi, Yolanda Demetriou, Anne Kerstin Reimers
BACKGROUND: Children's independent mobility (CIM) is an important contributor to physical activity and health in children. However, in the last 20 years CIM has significantly decreased. To develop effective intervention programs to promote CIM, the impact of the environment on CIM must be identified. This review seeks to provide an overview of sex/gender-specific socio-ecological correlates of CIM. METHODS: A systematic literature search of five databases (PubMed, PsycInfo, Scopus, Medline, Web of Science) was conducted with a priori defined eligibility criteria and identified 1838 potential articles published between January 1990 and November 2017...
July 3, 2018: International Journal of Health Geographics
https://www.readbyqxmd.com/read/29945619/quantifying-spatial-accessibility-in-public-health-practice-and-research-an-application-to-on-premise-alcohol-outlets-united-states-2013
#12
Hua Lu, Xingyou Zhang, James B Holt, Dafna Kanny, Janet B Croft
OBJECTIVE: To assess spatial accessibility measures to on-premise alcohol outlets at census block, census tract, county, and state levels for the United States. METHODS: Using network analysis in a geographic information system, we computed distance-based measures (Euclidean distance, driving distance, and driving time) to on-premise alcohol outlets for the entire U.S. at the census block level. We then calculated spatial access-based measures, specifically a population-weighted spatial accessibility index and population-weighted distances (Euclidean distance, driving distance, and driving time) to alcohol outlets at the census tract, county, and state levels...
June 27, 2018: International Journal of Health Geographics
https://www.readbyqxmd.com/read/29929522/distributional-ecology-of-andes-hantavirus-a-macroecological-approach
#13
Francisca Astorga, Luis E Escobar, Daniela Poo-Muñoz, Joaquin Escobar-Dodero, Sylvia Rojas-Hucks, Mario Alvarado-Rybak, Melanie Duclos, Daniel Romero-Alvarez, Blanca E Molina-Burgos, Alexandra Peñafiel-Ricaurte, Frederick Toro, Francisco T Peña-Gómez, A Townsend Peterson
BACKGROUND: Hantavirus pulmonary syndrome (HPS) is an infection endemic in Chile and Argentina, caused by Andes hantavirus (ANDV). The rodent Oligoryzomys longicaudatus is suggested as the main reservoir, although several other species of Sigmodontinae are known hosts of ANDV. Here, we explore potential ANDV transmission risk to humans in southern South America, based on eco-epidemiological associations among: six rodent host species, seropositive rodents, and human HPS cases. METHODS: We used ecological niche modeling and macroecological approaches to determine potential geographic distributions and assess environmental similarity among rodents and human HPS cases...
June 22, 2018: International Journal of Health Geographics
https://www.readbyqxmd.com/read/29914506/use-of-mobile-technology-based-participatory-mapping-approaches-to-geolocate-health-facility-attendees-for-disease-surveillance-in-low-resource-settings
#14
Kimberly M Fornace, Henry Surendra, Tommy Rowel Abidin, Ralph Reyes, Maria L M Macalinao, Gillian Stresman, Jennifer Luchavez, Riris A Ahmad, Supargiyono Supargiyono, Fe Espino, Chris J Drakeley, Jackie Cook
BACKGROUND: Identifying fine-scale spatial patterns of disease is essential for effective disease control and elimination programmes. In low resource areas without formal addresses, novel strategies are needed to locate residences of individuals attending health facilities in order to efficiently map disease patterns. We aimed to assess the use of Android tablet-based applications containing high resolution maps to geolocate individual residences, whilst comparing the functionality, usability and cost of three software packages designed to collect spatial information...
June 18, 2018: International Journal of Health Geographics
https://www.readbyqxmd.com/read/29895308/a-log-weibull-spatial-scan-statistic-for-time-to-event-data
#15
Iram Usman, Rhonda J Rosychuk
BACKGROUND: Spatial scan statistics have been used for the identification of geographic clusters of elevated numbers of cases of a condition such as disease outbreaks. These statistics accompanied by the appropriate distribution can also identify geographic areas with either longer or shorter time to events. Other authors have proposed the spatial scan statistics based on the exponential and Weibull distributions. RESULTS: We propose the log-Weibull as an alternative distribution for the spatial scan statistic for time to events data and compare and contrast the log-Weibull and Weibull distributions through simulation studies...
June 13, 2018: International Journal of Health Geographics
https://www.readbyqxmd.com/read/29885662/food-environments-and-dietary-intakes-among-adults-does-the-type-of-spatial-exposure-measurement-matter-a-systematic-review
#16
REVIEW
Alexia Bivoltsis, Eleanor Cervigni, Gina Trapp, Matthew Knuiman, Paula Hooper, Gina Leslie Ambrosini
BACKGROUND: The relationships between food environments and dietary intake have been assessed via a range of methodologically diverse measures of spatial exposure to food outlets, resulting in a largely inconclusive body of evidence, limiting informed policy intervention. OBJECTIVE: This systematic review aims to evaluate the influence of methodological choice on study outcomes by examining the within-study effect of availability (e.g., counts) versus accessibility (e...
June 9, 2018: International Journal of Health Geographics
https://www.readbyqxmd.com/read/29884205/ambient-air-quality-and-spatio-temporal-patterns-of-cardiovascular-emergency-department-visits
#17
Eun-Hye Yoo, Patrick Brown, Youngseob Eum
BACKGROUND: Air pollutants have been associated with various adverse health effects, including increased rates of hospital admissions and emergency room visits. Although numerous time-series studies and case-crossover studies have estimated associations between day-to-day variation in pollutant levels and mortality/morbidity records, studies on geographic variations in emergency department use and the spatial effects in their associations with air pollution exposure are rare. METHODS: We focused on the elderly who visited emergency room for cardiovascular related disease (CVD) in 2011...
June 8, 2018: International Journal of Health Geographics
https://www.readbyqxmd.com/read/29871687/stress-experiences-in-neighborhood-and-social-environments-sense-a-pilot-study-to-integrate-the-quantified-self-with-citizen-science-to-improve-the-built-environment-and-health
#18
Benjamin W Chrisinger, Abby C King
BACKGROUND: Identifying elements of one's environment-observable and unobservable-that contribute to chronic stress including the perception of comfort and discomfort associated with different settings, presents many methodological and analytical challenges. However, it also presents an opportunity to engage the public in collecting and analyzing their own geospatial and biometric data to increase community member understanding of their local environments and activate potential environmental improvements...
June 5, 2018: International Journal of Health Geographics
https://www.readbyqxmd.com/read/29843715/differences-in-physical-environmental-characteristics-between-adolescents-actual-and-shortest-cycling-routes-a-study-using-a-google-street-view-based-audit
#19
Hannah Verhoeven, Linde Van Hecke, Delfien Van Dyck, Tim Baert, Nico Van de Weghe, Peter Clarys, Benedicte Deforche, Jelle Van Cauwenberg
BACKGROUND: The objective evaluation of the physical environmental characteristics (e.g. speed limit, cycling infrastructure) along adolescents' actual cycling routes remains understudied, although it may provide important insights into why adolescents prefer one cycling route over another. The present study aims to gain insight into the physical environmental characteristics determining the route choice of adolescent cyclists by comparing differences in physical environmental characteristics between their actual cycling routes and the shortest possible cycling routes...
May 29, 2018: International Journal of Health Geographics
https://www.readbyqxmd.com/read/29801488/spatially-explicit-assessment-of-heat-health-risk-by-using-multi-sensor-remote-sensing-images-and-socioeconomic-data-in-yangtze-river-delta-china
#20
Qian Chen, Mingjun Ding, Xuchao Yang, Kejia Hu, Jiaguo Qi
BACKGROUND: The increase in the frequency and intensity of extreme heat events, which are potentially associated with climate change in the near future, highlights the importance of heat health risk assessment, a significant reference for heat-related death reduction and intervention. However, a spatiotemporal mismatch exists between gridded heat hazard and human exposure in risk assessment, which hinders the identification of high-risk areas at finer scales. METHODS: A human settlement index integrated by nighttime light images, enhanced vegetation index, and digital elevation model data was utilized to assess the human exposure at high spatial resolution...
May 25, 2018: International Journal of Health Geographics
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