A new rank correlation index, which can be used to measure the extent of concordance or discordance between two rankings, is proposed. This index is based on Gini’s mean difference computed on the totals ranks corresponding to each unit and it turns out to be a special case of a more general measure of the agreement of m rankings. The proposed index can be used in a test for the independence of...

OBJECTIVE To compare the concordance correlation coefficient for HbA1c results in an in-field experience. MATERIALS AND METHODS A prospective study in Monterrey, Mexico from April to August 2012 was conducted to evaluate the day-to-day clinical situation when measuring HbA1c. Blood samples from 38 consecutive patients were sent to seven local laboratories and one international reference labor...

OBJECTIVES The aim of this study was to verify the concordance of the measurement values when the same cephalometric analysis method was used for two-dimensional (2D) cephalometric radiography and three-dimensional computed tomography (3D CT), and to identify which 3D Frankfort horizontal (FH) plane was the most concordant with FH plane used for cephalometric radiography. MATERIALS AND METHOD...

OBJECTIVE To compare diagnostic accuracy of sonohysterography vs hysteroscopy in patients with benign uterine endocavitary findings. PATIENTS AND METHODS This retrospective study evaluated 202 patients submitted to sonohysterography after transvaginal ultrasound examination suspicious for uterine endocavitary findings. Cytological sample was taken and analyzed from the fluid used to distend t...

OBJECTIVE Establish the concordance between in-house ELISA and IIF for the diagnosis of infection with T. cruzi using blood eluates. METHODOLOGY A study of diagnostic technology evaluation and cross-sectional sample of 650 residents of an endemic area of Colombia was conducted. It was determined the Receiver Operating Characteristic curve (ROC) and IIF was used as a gold standard. It was esta...

9 We assess the concordance between low level HCV values obtained using the VERSANT HCV RNA 10 1.0 Assay (kPCR) and COBAS AmpliPrep/COBAS TaqMan HCV Quantitative Test v2.0. 11 The correlation between the values obtained by the two RT-PCR assays for samples with quantifiable 12 HCV RNA levels revealed that viral load measured by kPCR significantly correlated with that of the 13 CAP/CTM (R=0.644,...

AIM To determine whether the TKTL1 protein epitope detection in monocytes (EDIM) test allows detection of upregulated glucose metabolism in malignancies. MATERIALS & METHODS The EDIM-TKTL1 blood test was conducted in 240 patients with 17 different confirmed or suspected malignancies. Test scores were compared with (18)F-fluoro-2-deoxy-D-glucose (FDG)-PET/computed tomography (CT) results. RE...

We developed a new flexible approach for a co-analysis of multi-modal brain imaging data using a non-parametric framework. In this approach, results from separate analyses on different modalities are combined using a combining function and assessed with a permutation test. This approach identifies several cross-modality relationships, such as concordance and dissociation, without explicitly mod...

We assess the concordance between low level HCV values obtained using the VERSANT HCV RNA 1.0 Assay (kPCR) and COBAS AmpliPrep/COBAS TaqMan HCV Quantitative Test v2.0. The correlation between the values obtained by the two RT-PCR assays for samples with quantifiable HCV RNA levels revealed that viral load measured by kPCR significantly correlated with that of the CAP/CTM (R=0.644, P<0.0001). Th...

INTRODUCTION A retrospective study of melanocytic naevi was undertaken to assess the degree of clinico-pathological correlation and incidence of histological atypia. MATERIALS AND METHODS The case records from January to March 1996 of all patients with histologically diagnosed melanocytic naevi at the National Skin Centre were analysed. RESULTS Of the 240 lesions removed from 167 patients, ...