open access
The minimum basic dataset for diagnoses of cerebrovascular disease: Methodological issue on reliability
- Safety Promotion and Injury Prevention Research Center, Shahid Beheshti University of Medical Sciences, Tehran
- Department of Epidemiology, School of Health, Shahid Beheshti University of Medical Sciences, Tehran
open access
Abstract
Reliability (precision, repeatability, agreement) and validity (accuracy) are two completely different issues which should be assessed using appropriate tests. It is crucial to know that, reporting concordance rate; the selection error rate and the classification error rate are not the most appropriate estimates to assess reliability. Regarding reliability, for qualitative variables, weighted kappa should be used with caution. However, sensitivity, specificity, positive predictive value (PPV), negative predictive value (NPV), likelihood ratio positive and negative as well as diagnostic accuracy are estimates that are usually used to evaluate the validity of a test compared to a gold standard.
Abstract
Reliability (precision, repeatability, agreement) and validity (accuracy) are two completely different issues which should be assessed using appropriate tests. It is crucial to know that, reporting concordance rate; the selection error rate and the classification error rate are not the most appropriate estimates to assess reliability. Regarding reliability, for qualitative variables, weighted kappa should be used with caution. However, sensitivity, specificity, positive predictive value (PPV), negative predictive value (NPV), likelihood ratio positive and negative as well as diagnostic accuracy are estimates that are usually used to evaluate the validity of a test compared to a gold standard.
Keywords
Cerebrovascular disease, Diagnosis-related groups, Quality, Registries, Stroke, Reliability, Methodological issues
Title
The minimum basic dataset for diagnoses of cerebrovascular disease: Methodological issue on reliability
Journal
Neurologia i Neurochirurgia Polska
Issue
Pages
331-332
Page views
247
Article views/downloads
288
DOI
10.1016/j.pjnns.2017.04.003
Bibliographic record
Neurol Neurochir Pol 2017;51(4):331-332.
Keywords
Cerebrovascular disease
Diagnosis-related groups
Quality
Registries
Stroke
Reliability
Methodological issues
Authors
Siamak Sabour