https://doi.org/10.7490/f1000research.1094610.1
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Batalha L, Oliveira AM, Fernandes AA et al. Metric effects of taking tears out of the Wong-Baker faces pain scale. F1000Posters 2013, 4:1277 (poster)

Metric effects of taking tears out of the Wong-Baker faces pain scale

Luís Batalha1, Armando M Oliveira, Ananda A Fernandes, Joana C Goncalves, Ricardo G Viegas, Nuno S Teixeira
Published 12 Nov 2013
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Published 12 Nov 2013

Metric effects of taking tears out of the Wong-Baker faces pain scale

[version 1; not peer reviewed]

Luís Batalha1, Armando M Oliveira, Ananda A Fernandes, Joana C Goncalves, Ricardo G Viegas, Nuno S Teixeira
Author Affiliations
1 Health Sciences Research Unit - Nursing, Nursing School of Coimbra, Portugal
Presented at
8th EFIC Congress “Pain in Europe” 2013
Abstract
Whether or not to use anchoring elements such as smiles and tears in pain faces scales remains an open issue (1). A first step towards settling this issue is to establish their effects over such features as the dynamic range of the scales and/or their equal-interval properties. This work is aimed at evaluating the effects of removing tears as an upper anchor in the Wong-Baker Faces Pain Rating Scale (WBFPRS).

Children integrated the two pain informers through an averaging model, which allowed deriving functional scale values (interval level) and measures of relative importance (ratio level) for each face. The range of the WBFPRS without tears was reduced. The WBFPRS came slightly closer to the equal interval ideal. All its faces were evaluated as more intense than in the tears-in version, except for the last one. The relative importance of this face was sizeably diminished.

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Funding
Portuguese Foundation for Science and Technology, PTDC/PSI-PCO/107910/2008
Competing Interests

No competing interests were disclosed

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