This is the program for the 2010 Joint Statistical Meetings in Vancouver, British Columbia.
Abstract Details
Activity Number:
|
360
|
Type:
|
Contributed
|
Date/Time:
|
Tuesday, August 3, 2010 : 10:30 AM to 12:20 PM
|
Sponsor:
|
Biometrics Section
|
Abstract - #307612 |
Title:
|
Blood Transfusion After Lung Transplant Using Two-Step Nonlinear Multiphase Generalized Mixed Models
|
Author(s):
|
Jeevanantham Rajeswaran*+ and Eugene H. Blackstone
|
Companies:
|
Cleveland Clinic and Cleveland Clinic
|
Address:
|
, , OH, ,
|
Keywords:
|
generalized mixed models ;
multi-phase longitudinal models ;
non-linear generalized mixed models
|
Abstract:
|
Blood transfusion has been shown to impact outcomes after surgery. But, little is known about patient factors influencing the long-term transfusion. We present a 2-step separate modeling to analyze the longitudinal transfusion data. Step 1: A multi-phase logit mixed model presented to estimate time-related prevalence of transfusion and their determinants. Step 2: A multi-phase Poisson mixed model presented to estimate the expected number of units of red blood cell transfused and their determinants. These models enable us to estimate patient-specific risk factors and population-specific prevalence and expected number of units transfused. The main features of these models are: 1. Temporal pattern can be decomposed into different time phases (eg. early, and late) using a time function; 2. Influence of covariates on transfusion may or may not change over time (time-varying coefficients).
|
The address information is for the authors that have a + after their name.
Authors who are presenting talks have a * after their name.
Back to the full JSM 2010 program
|
2010 JSM Online Program Home
For information, contact jsm@amstat.org or phone (888) 231-3473.
If you have questions about the Continuing Education program, please contact the Education Department.