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Modelling the Ecological Comorbidity of Acute Respiratory Infection,Diarrhoea and Stunting among Children Under the Age of 5 Years in Somalia
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Damaris K. Kinyoki Samuel O. Manda Grainne M. Moloney Elijah O. Odundo James A. Berkley Abdisalan M. Noor Ngianga‐Bakwin Kandala 《Revue internationale de statistique》2017,85(1):164-176
The aim of this study was to assess spatial co‐occurrence of acute respiratory infections (ARI), diarrhoea and stunting among children of the age between 6 and 59 months in Somalia. Data were obtained from routine biannual nutrition surveys conducted by the Food and Agriculture Organization 2007–2010. A Bayesian hierarchical geostatistical shared component model was fitted to the residual spatial components of the three health conditions. Risk maps of the common spatial effects at 1×1 km resolution were derived. The empirical correlations of the enumeration area proportion were 0.37, 0.63 and 0.66 for ARI and stunting, diarrhoea and stunting and ARI and diarrhoea, respectively. Spatially, the posterior residual effects ranged 0.03–20.98, 0.16–6.37 and 0.08–9.66 for shared component between ARI and stunting, diarrhoea and stunting and ARI and diarrhoea, respectively. The analysis showed clearly that the spatial shared component between ARI, diarrhoea and stunting was higher in the southern part of the country. Interventions aimed at controlling and mitigating the adverse effects of these three childhood health conditions should focus on their common putative risk factors, particularly in the South in Somalia. 相似文献
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We describe a flexible geo-additive Bayesian survival model that controls, simultaneously, for spatial dependence and possible
nonlinear or time-varying effects of other variables. Inference is fully Bayesian and is based on recently developed Markov
Chain Monte Carlo techniques. In illustrating the model we introduce a spatial dimension in modelling under-five mortality
among Malawian children using data from Malawi Demographic and Health Survey of 2000. The results show that district-level
socioeconomic characteristics are important determinants of childhood mortality. More importantly, a separate spatial process
produces district clustering of childhood mortality indicating the importance of spatial effects. The visual nature of the
maps presented in this paper highlights relationships that would, otherwise, be overlooked in standard methods. 相似文献
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