Abstract Details
Activity Number:
|
500
|
Type:
|
Contributed
|
Date/Time:
|
Wednesday, August 12, 2015 : 8:30 AM to 10:20 AM
|
Sponsor:
|
Section on Medical Devices and Diagnostics
|
Abstract #316731
|
View Presentation
|
Title:
|
Discriminating Three or More Ordinal Outcomes with Continuous Measurements by Combining Cumulative Logit Regression and ROC Curve Analysis
|
Author(s):
|
Rey DeCastro*
|
Companies:
|
CDC
|
Keywords:
|
cumulative logit regression ;
clinical chemistry ;
diagnostic test ;
proportional odds ;
receiver operating characteristic curve
|
Abstract:
|
Standard receiver operating characteristic (ROC) curve analysis estimates a cutpoint or threshold for a continuous measurement that discriminates two discrete outcomes. This paper describes a procedure for estimating continuous cutpoints discriminating three or more ordinal outcomes. The procedure comprises a two-stage, semiparametric approach combining conventional cumulative logit regression with a cumulative version of ROC curve analysis. Performance is evaluated under simulation (assuming proportional and non-proportional odds) and demonstrated with biomarker data from the National Health and Nutrition Examination Survey to discriminate three ordinal tobacco smoke exposure categories.
|
Authors who are presenting talks have a * after their name.
Back to the full JSM 2015 program
|
For program information, contact the JSM Registration Department or phone (888) 231-3473.
For Professional Development information, contact the Education Department.
The views expressed here are those of the individual authors and not necessarily those of the JSM sponsors, their officers, or their staff.
2015 JSM Online Program Home
ASA Meetings Department
732 North Washington Street, Alexandria, VA 22314
(703) 684-1221 • meetings@amstat.org
Copyright © American Statistical Association.