0
Editor's Correspondence |

Being Sensitive to the Specifics of Predictive Values in the Diagnosis of Tuberculous Pleuritis

Robert J. Nardino, MD; Stephen A. Atlas, MD
Arch Intern Med. 1999;159(12):1370. doi:.
Text Size: A A A
Published online

Extract

Light has been responsible for defining many aspects of the classification of pleural effusions. However, we thought that his editorial1 on tuberculous pleuritis confused the statistical terminology. In the editorial, Light comments on test specificity but actually describes positive predictive value. Sensitivity and specificity are properties inherent to the test itself and are usually considered to be independent of prevalence. This independence may not be completely true in practice, since the disease severity in patients whose results are selected to demonstrate the sensitivity and specificity of a test may be different than that typically encountered (spectrum bias).2 However, the predictive value (both positive and negative) of a test is highly dependent on the prevalence of disease. This can be demonstrated using 2×2 tables with the test characteristics described by Light.

Sign In to Access Full Content

Don't have Access?

Register and get free email Table of Contents alerts, saved searches, PowerPoint downloads, CME quizzes, and more

Subscribe for full-text access to content from 1998 forward and a host of useful features

Activate your current subscription (AMA members and current subscribers)

Purchase Online Access to this article for 24 hours

First Page Preview

View Large
/>
First page PDF preview

Figures

Tables

References

Correspondence

CME
Meets CME requirements for:
Browse CME for all U.S. States
Accreditation Information
The American Medical Association is accredited by the Accreditation Council for Continuing Medical Education to provide continuing medical education for physicians. The AMA designates this journal-based CME activity for a maximum of 1 AMA PRA Category 1 CreditTM per course. Physicians should claim only the credit commensurate with the extent of their participation in the activity. Physicians who complete the CME course and score at least 80% correct on the quiz are eligible for AMA PRA Category 1 CreditTM.
Note: You must get at least of the answers correct to pass this quiz.
You have not filled in all the answers to complete this quiz
The following questions were not answered:
Sorry, you have unsuccessfully completed this CME quiz with a score of
The following questions were not answered correctly:
Commitment to Change (optional):
Indicate what change(s) you will implement in your practice, if any, based on this CME course.
Your quiz results:
The filled radio buttons indicate your responses. The preferred responses are highlighted
For CME Course: A Proposed Model for Initial Assessment and Management of Acute Heart Failure Syndromes
Indicate what changes(s) you will implement in your practice, if any, based on this CME course.
NOTE:
Citing articles are presented as examples only. In non-demo SCM6 implementation, integration with CrossRef’s "Cited By" API will populate this tab (http://www.crossref.org/citedby.html).
Submit a Comment

Multimedia

Some tools below are only available to our subscribers or users with an online account.

Sign In to Access Full Content

Related Content

Customize your page view by dragging & repositioning the boxes below.

Articles Related By Topic
Related Topics
PubMed Articles
68Ga-citrate PET/CT in Tuberculosis: A pilot study. Q J Nucl Med Mol Imaging Published online Mar 20, 2014.;
Jobs
brightcove.createExperiences();