We consider modeling the dependence of sensitivity and specificity on the disease prevalence in diagnostic accuracy studies. Many meta-analyses compare test accuracy across studies and fail to incorporate the possible connection between the accuracy measures and the prevalence. We propose a Pearson type correlation coefficient and an estimating equation-based regression framework to help unders...

AIM The purpose of this study was to compare whole-body (50 kHz alternating current) and segmental (5 kHz alternating current) bioelectrical impedance analysis (BIA) in the assessment of manifested edema of the upper limbs. PATIENTS AND METHODS Whole-body and segmental BIA were performed in 30 patients with edema of the upper limb following breast cancer treatment. RESULTS Pearson correlati...

Methods The Brazilian Portuguese version of the CU-Q2oL was self-administered in 96 adults with CU treated at the outpatient clinic of a university hospital. Disease activity was assessed using the Urticaria Activity Score (UAS). The following characteristics were also studied: age, gender, type of urticarial and duration of disease. ANOVA was used to compare the results of CU-Q2oL between the ...

customer orientation is one of the new approaches which is recently considered by the iranian healthcare centers. the present study aims to identify the main factors of customer orientation in iranian hospitals. the study is done through analysis of a questionnaire designed after recognition of the main variables. iranian social security organization hospitals (the major governmental health ins...

In this paper, we approach color-image-difference metrics by a Euclidean color-difference formula for small-medium color differences in log-compressed OSA-UCS space, recently published (C. Oleari, M. Melgosa and R. Huertas, J. Opt. Soc. Am. A, 26(1):121–134, 2009). We start from previous imagedifference metrics by replacing the CIE color-difference formulae with the new one. Tests are made by u...

This paper reports a psycholinguistic research for the human intuition on the sense classification. The goal of this research is to find a computational model that fits best with our experiments on human intuition. In this regard, we compare three different computational models; the Boolean model, the probabilistic model, and the probabilistic inference model. We first measured the values of ea...

We construct a Pearson correlation-based network and a partial correlationbased network, i.e., two minimum spanning trees (MST-Pearson and MST-Partial), to analyze the correlation structure and evolution of world stock markets. We propose a new method for constructing the MST-Partial. We use daily price indices of 57 stock markets from 2005 to 2014 and find (i) that the distributions of the Pea...

Purpose. To compare anterior chamber depth (ACD), representing the distance between the anterior corneal surface and anterior lens surface measurements between the Galilei Dual Scheimpflug Analyzer and the IOLMaster. Methods. A retrospective review of 65 individual patient eyes with normal anterior segments, and no prior ocular surgery was performed. Patients underwent ACD measurements with bot...