JSM 2004 - Toronto

Abstract #300911

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Activity Number: 342
Type: Contributed
Date/Time: Wednesday, August 11, 2004 : 10:30 AM to 12:20 PM
Sponsor: Section on Survey Research Methods
Abstract - #300911
Title: Modeling of Response Propensities in the Joint Canada/United States Survey of Health
Author(s): Meena Khare*+ and Karen Davis
Companies: National Center for Health Statistics and National Center for Health Statistics
Address: CDC, Ellicott City, MD, 21042-6351,
Keywords: response propensity ; weighting ; nonresponse
Abstract:

The Joint Canada/United States Survey of Health (JCUSH), a one-time national random-digit-dialing telephone survey, was conducted jointly by the National Center for Health Statistics (NCHS) and Statistics Canada from November 2002 to July 2003. The JCUSH is designed to compare selected health characteristics of both the U.S. and the Canadian adult population 18 years of age and older. Persons aged 65 years and over were sampled at a higher rate than other adults. Weighting class adjustments are commonly used in government-sponsored sample surveys to adjust for unit nonresponse. An alternative approach is to use logistic regression to model response propensities and use them to form adjustment cells. A response indicator variable is regressed upon potential covariates that are available for both respondents and nonrespondents to obtain predicted probabilities. This paper describes an evaluation of the weighting methodology used to adjust for noncoverage and unit nonresponse in the U.S. sample.

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