منابع مشابه
The agreement chart
BACKGROUND When assessing the concordance between two methods of measurement of ordinal categorical data, summary measures such as Cohen's (1960) kappa or Bangdiwala's (1985) B-statistic are used. However, a picture conveys more information than a single summary measure. METHODS We describe how to construct and interpret Bangdiwala's (1985) agreement chart and illustrate its use in visually a...
متن کاملPoor agreement between chart-based and objectively identified comorbidities of COPD.
Comorbidities contribute significantly to the individual burden of disease in patients with chronic obstructive pulmonary disease (COPD). Their assessment is considered essential for COPD management and is frequently based on data from patients’ charts [1]. However, comorbidities are often undiagnosed [2]. Hence, a mismatch between chart-based and objectively identified comorbidities could be a...
متن کاملMeasuring agreement of administrative data with chart data using prevalence unadjusted and adjusted kappa
BACKGROUND Kappa is commonly used when assessing the agreement of conditions with reference standard, but has been criticized for being highly dependent on the prevalence. To overcome this limitation, a prevalence-adjusted and bias-adjusted kappa (PABAK) has been developed. The purpose of this study is to demonstrate the performance of Kappa and PABAK, and assess the agreement between hospital ...
متن کاملInterobserver agreement in retrospective chart reviews for factors associated with cervical spine injuries in children.
OBJECTIVES The objective was to describe the interobserver agreement between trained chart reviewers and physician reviewers in a multicenter retrospective chart review study of children with cervical spine injuries (CSIs). METHODS Medical records of children younger than 16 years old with cervical spine radiography from 17 Pediatric Emergency Care Applied Research Network (PECARN) hospitals ...
متن کاملMax Chart: Combining X-bar Chart and S Chart
Control chart techniques have been widely used in industries to monitor a process in quality improvement. Whenever we deal with variables data, we usually employ a combination of X-bar chart and R chart (or S chart) to monitor both the center and the spread of the process. In this paper, we propose a simple alternative, that is, we design a single chart to monitor both the center and the spread...
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ژورنال
عنوان ژورنال: BMC Medical Research Methodology
سال: 2013
ISSN: 1471-2288
DOI: 10.1186/1471-2288-13-97