Abstract #301508

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JSM 2003 Abstract #301508
Activity Number: 466
Type: Contributed
Date/Time: Thursday, August 7, 2003 : 10:30 AM to 12:20 PM
Sponsor: Section on Survey Research Methods
Abstract - #301508
Title: Sampling Strategies for the Proposed National Children's Study
Author(s): David R. Judkins*+ and Graham Kalton and Jospeh Waksberg and John Kiely
Companies: Westat and Westat and Westat and NCHS
Address: 1650 Research Blvd., Rockville, MD, 20850-3195,
Keywords: antenatal recruitment ; cohort study ; child development
Abstract:

Several federal agencies are collaborating to plan the National Children's Study (NCS). The NCS goals are to examine the effects of environmental exposures on children's physiology, emotional development, and cognitive abilities. The NCS will be a panel study that will follow a sample of roughly 100,000 children from a point in time before birth through age 21 and possibly beyond. The NCS data collections will be extremely complex, involving the collection of health and developmental outcomes, environmental exposure data, and neighborhood data, as well as personal information reported by mothers and children. The study's findings should be generalizable as closely as possible to the population of the United States as a whole. Under contract to the National Center for Health Statistics, Westat examined a number of candidate sample frames and sample designs for NCS enrollment. This paper describes and evaluates four designs that illustrate a reasonable range of possibilities for the NCS. The alternative sample designs were evaluated in terms of generalizability, precision, bias, operational features, and cost.

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