0
Access to paid content on this site is currently suspended due to excessive activity being detected from your IP address 50.19.47.197. Please contact the publisher to request reinstatement.
We're unable to sign you in at this time. Please try again in a few minutes.
Retry
We were able to sign you in, but your subscription(s) could not be found. Please try again in a few minutes.
Retry
There may be a problem with your account. Please contact the AMA Service Center to resolve this issue.
Contact the AMA Service Center:
Telephone: 1 (800) 262-2350 or 1 (312) 670-7827  *   Email: subscriptions@jamanetwork.com
Error Message ......
Correspondence |

Visualizing Bayesian Analysis Using a Spreadsheet Geometry

John W. Melski, MD
Arch Dermatol. 2011;147(10):1225-1227. doi:10.1001/archdermatol.2011.295.
Text Size: A A A
Published online

Extract

Bayesian analysis is a useful way to look at evidence. A Bayesian analysis was recently published by Rhodes1 on the prognostic value of sentinel lymph node biopsy (SLNB) for melanoma based on the depth of the tumor. His analysis relies on the crucial summary statistics of sensitivity, specificity, positive predictive value, and negative predictive value. These statistics are derived from a population of patients that is first subdivided by a binary end point (eg, dead or alive) and then further subdivided by a binary predictive test (eg, positive or negative SLNB results). Based on these subdivisions, each patient in the population can be counted in one of the cells of a 2   ×  2 table.

Figures in this Article

Sign in

Purchase Options

• Buy this article
• Subscribe to the journal
• Rent this article ?

First Page Preview

View Large
First page PDF preview

Figures

Place holder to copy figure label and caption
Graphic Jump Location

Figure. Prognostic usefulness of sentinel lymph node biopsy (SLNB) for melanoma in patients with thin, intermediate, and thick tumors, respectively. Patients who died are represented in the left-most rectangles. Patients with positive SLNB results are represented on the bottom of these rectangles.

Tables

References

Correspondence

October 1, 2011
Arthur R. Rhodes, MD, MPH
Arch Dermatol. 2011;147(10):1225-1227. doi:10.1001/archdermatol.2011.296.
CME
Also 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.
Please click the checkbox indicating that you have read the full article in order to submit your answers.
Your answers have been saved for later.
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.

Multimedia

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

76 Views
1 Citations
×

Sign in

Purchase Options

• Buy this article
• Subscribe to the journal
• Rent this article ?

Related Content

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

Articles Related By Topic
Related Collections
PubMed Articles
Jobs
brightcove.createExperiences();