Poor concordance between interferon-γ release assays and tuberculin skin tests in diagnosis of latent tuberculosis infection among HIV-infected individuals

Background. Poor vitamin D status and frailty are common in older people and associated with adverse health out-comes. The aim of this study was to examine the associations between serum 25-hydroxyvitamin D and 1,25-dihydroxy-vitamin D levels and frailty and components of frailty in older

Background. Poor vitamin D status and frailty are common in older people and associated with adverse health out-comes. The aim of this study was to examine the associations between serum 25-hydroxyvitamin D and 1,25-dihydroxy-vitamin D levels and frailty and components of frailty in older

~0.2. These values for the correlation coefficient are all indicative of a “poor ” correlation. The regression line slopes for the best fit lines between the 10 Be production and the 10 Be measurements used in the cross correlation analysis are all in the range 0.4-0.6. This is a particular problem

In this study we use existing data in both rats and humans exposed to respirable, poorly soluble particles to compare the dose–response relationships for lung cancer. Exposure–response data for lung cancer were available in both species for crystalline silica and in rats for coal dust and titanium

gastritis were assessed in accordance with the Sydney System. The results showed poor concordance between endoscopic and histological gastritis even after reclassifying mild endoscopic gastritis as normal. The low prevalence of H. pylori was validated in this study.

ABSTRACT: Ethnic minorities are poorly represented among physicians and other health professionals. In what is called “race-discordant ” relationships, patients from ethnic groups frequently are treated by professionals from a different ethnic background. The research reviewed here documents

Abstract: Immunohistochemistry (IHC) continues to suffer from variable consistency, poor reproducibility, quality assurance disparities, and the lack of standardization resulting in poor concordance, validation, and verification. This document lists the recommendations made by the Ad-Hoc Committee

eccentricities, graphically and using indices of agreement, including Pearson correlation coefficient (precision), accuracy coefficient, and concordance correlation coefficient (ccc). RESULTS. Agreement was poor between the Densitometer and Spectralis at all eccentricities, at baseline (e.g., at 0

Anti-EGFR targeted therapy is a potent strategy in the treatment of metastatic colorectal cancer (mCRC) but activating mutations in the KRAS gene are associated with poor response to this treatment. Therefore, KRAS mutation analysis is employed in the selection of patients for EGFR-targeted therapy