Abstract #300266

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JSM 2003 Abstract #300266
Activity Number: 170
Type: Contributed
Date/Time: Monday, August 4, 2003 : 2:00 PM to 3:50 PM
Sponsor: Section on Survey Research Methods
Abstract - #300266
Title: New Stratification for the Medical Expenditure Panel Survey-Insurance Component
Author(s): John P. Sommers*+ and Steven D. Riesz
Companies: Agency for Healthcare Research and Quality and U.S. Census Bureau
Address: 10109 Parkwood Dr., Bethesda, MD, 20814-4033,
Keywords: stratification ; health insurance ; predicted values ; MEPS ; strata boundaries
Abstract:

The MEPS-IC is an establishment survey, sponsored by the Agency for Healthcare Research and Quality, that collects data about employer-provided health insurance. Currently, stratification is done based upon the sizes of the business establishment and the controlling firm. This paper discusses the evaluation of a proposed new two-way stratification scheme. Strata boundaries are determined using predicted values for the probability of having health insurance and the number of enrollees, two important survey variables. These variables were chosen for analysis because of their importance and because of their very different sampling requirements. Generally, the first requires a large sample of small establishments while the second requires a large sample of large establishments. Several allocations are evaluated using variance components developed from past samples. These results are compared to the current allocation method. Recommendations for changes in design structure are made.

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