open access

Vol 51, No 4 (2017)
Letters to the Editor
Submitted: 2017-03-04
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The minimum basic dataset for diagnoses of cerebrovascular disease: Methodological issue on reliability

Siamak Sabour
DOI: 10.1016/j.pjnns.2017.04.003
·
Neurol Neurochir Pol 2017;51(4):331-332.

open access

Vol 51, No 4 (2017)
Letters to the Editor
Submitted: 2017-03-04

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.

Get Citation

Keywords

Cerebrovascular disease, Diagnosis-related groups, Quality, Registries, Stroke, Reliability, Methodological issues

About this article
Title

The minimum basic dataset for diagnoses of cerebrovascular disease: Methodological issue on reliability

Journal

Neurologia i Neurochirurgia Polska

Issue

Vol 51, No 4 (2017)

Pages

331-332

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

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