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Please use this identifier to cite or link to this item: http://hdl.handle.net/1942/25777

Title: Sample substitution can be an acceptable data-collection strategy: the case of the Belgian Health Interview Survey
Authors: Demarest, Stefaan
Molenberghs, Geert
Van der Heyden, Johan
Gisle, Lydia
Van Oyen, Herman
de Waleffe, Sandrine
Van Hal, Guido
Issue Date: 2017
Abstract: Substitution of non-participating households is used in the Belgian Health Interview Survey (BHIS) as a method to obtain the predefined net sample size. Yet, possible effects of applying substitution on response rates and health estimates remain uncertain. In this article, the process of substitution with its impact on response rates and health estimates is assessed. The response rates (RR)-both at household and individual level-according to the sampling criteria were calculated for each stage of the substitution process, together with the individual accrual rate (AR). Unweighted and weighted health estimates were calculated before and after applying substitution. Of the 10,468 members of 4878 initial households, 5904 members (RRind: 56.4%) of 2707 households (RRhh: 55.5%) participated. For the three successive (matched) substitutes, the RR dropped to 45%. The composition of the net sample resembles the one of the initial samples. Applying substitution did not produce any important distorting effects on the estimates. Applying substitution leads to an increase in non-participation, but does not impact the estimations.
Notes: [Demarest, Stefaan; Van der Heyden, Johan; Gisle, Lydia; Van Oyen, Herman] Sci Inst Publ Hlth, Brussels, Belgium. [Molenberghs, Geert] Hasselt Univ, Hasselt, Belgium. [Molenberghs, Geert] KU Leuven Leuven, Leuven, Belgium. [de Waleffe, Sandrine] Stat Belgium, Brussels, Belgium. [Van Hal, Guido] Univ Antwerp, Antwerp, Belgium.
URI: http://hdl.handle.net/1942/25777
DOI: 10.1007/s00038-017-0976-3
ISI #: 000412897200013
ISSN: 1661-8556
Category: A1
Type: Journal Contribution
Appears in Collections: Research publications

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