Many techniques have been proposed to model space-varying observation processes with a nonstationary spatial covariance structure and/or anisotropy, usually on a geostatistical framework. Nevertheless, there is an increasing interest in point process applications, and methodologies that take nonstationarity into account are welcomed. In this sense, this work proposes an extension of a class of spatial Cox process using spatial deformation.
View Article and Find Full Text PDFObjective: To present the urban arboviruses (dengue, zika and chikungunya) stratification methodology by the territorial receptivity Index, an instrument for the surveillance and control of these diseases, which considers the heterogeneity of an intra-municipal territory.
Methods: Ecological study that uses as unit of analysis the areas covered by health centers in Belo Horizonte. For the development of a territorial receptivity index, indicators of socio-environmental determination of urban arboviruses were selected in order to integrate the analysis of main components.
Objective: The objective of the study was to reduce the ventilator-associated pneumonia (VAP) incidence rates through a rational prevention program.
Design: The study was a non-controlled clinical trial with a set of interventions in mechanically ventilated patients from April 2006 until June 2008. Pneumonia rates were analyzed as time series and their mean risks of development were compared before and after the interventions with a non-concurrent cohort using the same time frame (January 2004-March 2006).
Chronic kidney disease (CKD) leads to renal failure and the need for renal replacement therapy (RRT). Secondary prevention may postpone CKD for many years. This retrospective study sought to analyze prognostic factors and estimate the mortality of patients with CKD secondary to diabetes mellitus and to hypertension that initiate RRT through non-elective hemodialysis at an emergency hospital unit in Rio de Janeiro, from hospital admission until transfer to referral units.
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