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Publications
Jacinto, C., Santos, F.P., Guedes Soares, C. and Silva, S.A. (2016), “Assessing the coding reliability of work accidents statistical data: How Coders Make a Difference”, Journal of Safety Research, Vol. 59, pp. 9-21
This article reports an assessment of the reliability of the coding procedure used for accidents at work within the European Union (EU), focusing on the case and experience of the Portuguese system. The procedure involves coding accident data, used for the production of official statistics, which are harmonised at European level, following a coding methodology established by the EUROSTAT. In Portugal, this task has been carried out by GEP (the governmental Cabinet for Strategy and Planning), here defined as the “reference group” or “expert group”. However, it is previewed that this coding task will be performed by non-expert people, because the paper-forms are being replaced by a national e-system for recording accidents directly at company level; e-forms are already in place in a few EU countries. Therefore, the aim of this study is twofold: 1) to assess the current situation, i.e., to quantify reliability of data coded by GEP (reference group), and 2) to assess the impact on the reliability level when the coding is carried out by non-experts, in this case involving two different coders groups. The study comprises the estimation of both intercoder and intracoder reliability for a set of 8 nominal variables. The assessment applies 3 reliability measures (or coefficients) calculated by 3 software packages (freeware). The findings suggest that the implementation of the new electronic form should be carefully monitored; also, Authorities should have quality control mechanisms in place since it affects the quality of statistics and information released to the public and scientific communities.
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