BACKGROUND Administrative data are increasingly being used to assess outcomes in kidney transplant recipients. OBJECTIVE To assess the validity of transplant data in healthcare administrative databases compared to the reference standard of information collected directly from transplant centres. DESIGN Retrospective cohort study. SETTING One of three major transplant centres in Ontario (To...

OBJECTIVES This study attempts to develop a comprehensive set of comorbidity measures for use with large administrative inpatient datasets. METHODS The study involved clinical and empirical review of comorbidity measures, development of a framework that attempts to segregate comorbidities from other aspects of the patient's condition, development of a comorbidity algorithm, and testing on het...

BACKGROUND AND PURPOSE Research based on administrative data has advantages, including large numbers, consistent data, and low cost. This study was designed to compare different methods of stroke classification using administrative data. METHODS Administrative hospital discharge data and medical record review of 206 patients were used to evaluate 3 algorithms for classifying stroke patients. ...

_Telemedicine systems with information changing and expanding periodically had been a major complexity for database administrative staff. So in this paper, we introduce a threefold approach to reduce and overcome the above stated complexity. It also focuses on other difficulties such as distance and time constraints. The threefold approach includes data fragmentation, web clustering and data di...

Benford’s law predicts the frequency of the first digit of numbers met in a wide range of naturally occurring phenomena. In data sets, following Benford’s law, numbers are started with a small leading digit more often than those with a large leading digit. This law can be used as a tool for detecting fraud and abnormally in the number sets and any fabricated number sets. This can be used as an ...

introduction: brain computer interface (bci) systems based on movement imagination (mi) are widely used in recent decades. separate feature extraction methods are employed in the mi data sets and classified in virtual reality (vr) environments for real-time applications. methods: this study applied wide variety of features on the recorded data using linear discriminant analysis (lda) classifier...

this work aims to extract the mineralogical constituents of the lahroud hyperion scene situated in the nw of iran. like the other push-broom sensors, hyperion images suffer from spectral distortions, namely the smile effect. the corresponding spectral curvature is defined as an across-track wavelength shift from the nominal central wavelength, and alters the pixel spectra. the common “column me...

Description of the document and setup of the analysis 2 Generating mock data for analysis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Natural Experiment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Field Experiment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Mock data for the variabl...