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Abstract Details

Activity Number: 159
Type: Topic Contributed
Date/Time: Monday, July 30, 2012 : 10:30 AM to 12:20 PM
Sponsor: Health Policy Statistics Section
Abstract - #304919
Title: Continuing Data Collection for Nonresponse: Benefits and Implications
Author(s): Nanhua Zhang*+ and Henian Chen
Companies: University of Southern Florida College of Public Health and University of Southern Florida College of Public Health
Address: 13201 Bruce B. Downs Blvd., MDC 56, Tampa, FL, 33612-3805, United States
Keywords: Nonresponse ; double sampling ; quality of life ; efficiency

Nonresponses are very common in health surveys and clinical trials, leading to inefficient estimation of the key parameters of interest or even biased estimation when the missingness is not random. Collecting additional data from the initial nonrespondents has been proposed. We study the benefits of collecting additional data from the initial nonrespondents using some simulation studies. Our analyses show significant gain of continuing data collection in nonrespondents; however, cautions are needed in dealing with the additional data collected from the nonrespondents. We apply the methods to a dataset from a Quality of Life study.

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