scholarly journals Online relative risks/rates estimation in spatial and spatio-temporal disease mapping

2019 ◽  
Vol 172 ◽  
pp. 103-116 ◽  
Author(s):  
Aritz Adin ◽  
Tomás Goicoa ◽  
María Dolores Ugarte
2019 ◽  
Vol 11 (1) ◽  
Author(s):  
Xiaoxiao Song ◽  
Yan Li ◽  
Le Cai ◽  
Wei Liu ◽  
Wenlong Cui

ObjectiveThe purpose is to propose a serial of approach for estimation for disease risk for ILI in "small area" and present the risk values by spatio-temporal disease mapping or an interactive visualization with HTML format.IntroductionDisease mapping is a method used to descript the geographical variation in risk (heterogeneity of risk) and to provide the potential reason (factors or confounders) to explain the distribution. Possibly the most famous uses of disease mapping in epidemiology were the studies by John Snow of the cholera epidemics in London. Accurate estimation relative risk of small areas such as mortality and morbidity, by different age, ethnic group, interval and regions, is important for government agencies to identify hazards and mitigate disease burden. Recently, as the innovative algorithms and the available software, more and more disease risk index has been pouring out. This abstract will provide several estimation risk index, from raw incidence to model-based relative risks, and use visual approach to display them.MethodsAll the data are from a syndromic surveillance and real-time early warning system in the Yunnan province in the China. For brief introduction aim, we are using the ILI (Influenza-like illness) data in December 2017 in one county. The relative risks of disease in small area are including: raw incidence, a standardized morbidity ratio (SMR), Empirical Bayes smoothing estimation relative risk (EB-RR) and the Besag-York-Mollio model (BYM). The incidence in each small area is common used for descriptive the risk but fail to comparable directly since the different population at risk in each area. SMR is a good way to deal with this incomparability. But SMR can give rise to imprecisely estimate in areas with small populations. Empirical Bayes estimation approach has been used for smoothing purpose and can be seen as a compromise between relative risks and P-values. However, all above approaches are inept to have spatial or spatio-temporal structure in mind. BYM based the Bayesian inference can handle both the area-specific spatial structured component (such as intrinsic conditional autoregressive component) and the exchangeable random effect (unstructured component). All the analyses are implemented in the R software with INLA package (http://www.r-inla.org). The outcome of relative risk estimation with visual way and interactive maps showing are using ggplot2 and leaflet packages.Results1, the spatio-temporal raw cases of ILI from 2017/12/01 to 2017/12/31 is Fig.12. the SMR and EB-RR estimation RR of ILI are in Fig.2 and Fig.33. the most excited is the interactive visualization with HTML format for all the risk indexes is visited http://rpubs.com/ynsxx/424814 in detail. And the screenshot is Fig.4ConclusionsSmall area disease risk estimation is important for disease prevention and control. The faster function of computer with power R software can lead to advance in disease mapping, allowing for complex spatio-temporal models and communicate the results with visualization way. 


2019 ◽  
pp. 281-317
Author(s):  
Miguel A. Martinez-Beneito ◽  
Paloma Botella-Rocamora

2020 ◽  
Vol 28 (6) ◽  
pp. 623-633
Author(s):  
Aboma Temesgen Sebu ◽  
Kasahun Takele Genati ◽  
Daniel Biftu Bekalo ◽  
Teshome Kebede Deressa

Abstract Tuberculosis disease burden remains a fundamental global public health concern for decades. The disease may not uniformly distributed with certain geographical areas recording higher notification rate than others. However, the Ethiopian national TB control program does not provide services based on those areas with the greatest notifications but rather on a uniform strategy. Therefore, this study aimed to assess the spatial distribution and presence of the spatio-temporal clustering of the disease in different geographic settings over 8 years in the East Hararge Zone. A retrospective space-time and spatial analysis were carried out at districts of East Hararghe zone based on a total of 34,564 notified TB cases during the study period. The study identified different case notification rate over districts and clustering effects for the purely spatial and spatiotemporal with different estimated relative risks. The study recommends national tuberculosis control program to give attention to highly observed case notification rates specially Babile, Haramaya and Jarso districs of East Hararge Zone to have effective TB intervention in the study area.


2009 ◽  
Vol 20 (6) ◽  
pp. 647-665 ◽  
Author(s):  
M. D. Ugarte ◽  
T. Goicoa ◽  
B. Ibáñez ◽  
A. F. Militino

2010 ◽  
Vol 22 (6) ◽  
pp. 725-734 ◽  
Author(s):  
Birgit Schrödle ◽  
Leonhard Held

2016 ◽  
Vol 27 (8) ◽  
pp. 466-478 ◽  
Author(s):  
Rachel Carroll ◽  
Andrew B. Lawson ◽  
Christel Faes ◽  
Russell S. Kirby ◽  
Mehreteab Aregay ◽  
...  

2014 ◽  
Vol 23 (6) ◽  
pp. 507-530 ◽  
Author(s):  
María Dolores Ugarte ◽  
Aritz Adin ◽  
Tomas Goicoa ◽  
Ana Fernandez Militino

2010 ◽  
Vol 38 (4) ◽  
pp. 698-715 ◽  
Author(s):  
Mahmoud Torabi ◽  
Rhonda J. Rosychuk

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