the prevalence of asthma remains difficult to determine with precision with no absolute or gold standard for diagnosis. international study of asthma and allergies in childhood (isaac) developed video questionnaire for epidemiological studies with less reliance on understanding written asthma questionnaire. the aim of this research was to determine the agreement between the isaac written and vi...

BACKGROUND Accurate monitoring of health conditions and behaviours, and health service usage in the population, using an effective and economical method is important for planning and evaluation. This study examines the reliability of questions asked in a telephone survey by conducting a test/retest analysis of a range of questions covering demographic variables, health risk factors and self-rep...

Mechanisms-based classifications of pain have been advocated for their potential to aid understanding of clinical presentations of pain and improve clinical outcomes. However, the reliability of mechanisms-based classifications of pain and the clinical criteria upon which such classifications are based are not known. The purpose of this investigation was to assess the inter- and intra-examiner ...

OBJECTIVE To investigate the validity and reliability of computerised acoustic analysis in the detection of abnormal respiratory noises in infants. METHODS Blinded, prospective comparison of acoustic analysis with stethoscope examination. Validity and reliability of acoustic analysis were assessed by calculating the degree of observer agreement using the kappa statistic with 95% confidence in...

OBJECTIVE Accurate preoperative staging is essential to provide the best treatment for lung cancer. The objective of the present study was to determine agreement between preoperative and surgical-pathological staging and to analyse the impact of any disparity on treatment. METHODS This is a descriptive study of a series of 176 lung cancer cases treated by surgery between 2005 and 2007. Preope...

OBJECTIVE To assess communication between vascular neurosurgeons and their patients with unruptured cerebral aneurysms about treatment options and expected outcomes. METHODS Vascular neurosurgeons and their patients with cerebral aneurysms were surveyed immediately following outpatient appointments in a neurosurgery clinic. Data collected included how well the patient understood their aneurys...

OBJECTIVE To evaluate a clinical classification system, the Clinical Age-Related Maculopathy Staging (CARMS) system, for age-related maculopathy (ARM) using a simple grading scale designed for clinical practice and clinical research protocols. PARTICIPANTS Two hundred forty-six male and female participants with various stages of ARM who were enrolled during the first 4 years of a longitudinal...

Statistical measures are described that are used in diagnostic imaging for expressing observer agreement in regard to categorical data. The measures are used to characterize the reliability of imaging methods and the reproducibility of disease classifications and, occasionally with great care, as the surrogate for accuracy. The review concentrates on the chance-corrected indices, kappa and weig...

In square contingency tables, analysis of agreement between row and column classifications is interest. For nominal categories, kappa co- efficient used to summarize the degree two raters. Numerous extensions generalizations statistics have been pro- posed in literature. addition coefficient, several authors use terms log-linear models. This paper focuses on approaches study interrater for tabl...

Fractures occur in the shoulder area, which has a wider range of motion than other joints body, for various reasons. To diagnose these fractures, data gathered from Xradiation (X-ray), magnetic resonance imaging (MRI), or computed tomography (CT) are used. This study aims to help physicians by classifying images taken X-ray devices as fracture / non-fracture with artificial intelligence. For th...