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"Do alternative weighting approaches for an Index of Multiple Deprivation change the association with mortality? A sensitivity analysis from Germany."

Schederecker, F, Kurz, C, FAIRBURN, Jon and Maier, W (2019) "Do alternative weighting approaches for an Index of Multiple Deprivation change the association with mortality? A sensitivity analysis from Germany.". BMJ Open. ISSN 2044-6055 (In Press)

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Abstract or description

ABSTRACT
Objectives:
This study aimed to assess the impact of using different weighting procedures for the German Index of Multiple Deprivation (GIMD) investigating their link to mortality rates.
Design and setting: In addition to the original (normative) weighting of the GIMD domains, four alternative weighting approaches were applied: equal weighting, linear regression, maximization algorithm and factor analysis. Correlation analyses to quantify the association between the differently weighted GIMD versions and mortality based on district-level official data from Germany in 2010 were applied (N=412 districts).
Outcome measures: Total mortality (all age groups) and premature mortality (< 65 years).
Results: All correlations of the GIMD versions with both total and premature mortality were highly significant (p < 0.001). The comparison of these associations using Williams’s t-test for paired correlations showed significant differences, which proved to be small in respect to absolute values of Spearman’s rho (total mortality: between 0.535 and 0.615; premature mortality: between 0.699 and 0.832).
Conclusions: The association between area deprivation and mortality proved to be stable, regardless of different weighting of the GIMD domains. The theory-based weighting of the GIMD should be maintained, due to the stability of the GIMD scores and the relationship to mortality.
Keywords: Area deprivation, German Index of Multiple Deprivation, domains, weighting, mortality

Item Type: Article
Faculty: School of Business, Leadership and Economics > Business, Management and Marketing
Depositing User: Jon FAIRBURN
Date Deposited: 28 Jun 2019 13:37
Last Modified: 28 Jun 2019 13:37
URI: http://eprints.staffs.ac.uk/id/eprint/5728

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