Journal
EUROPEAN JOURNAL OF PAIN
Volume 20, Issue 1, Pages 130-137Publisher
WILEY
DOI: 10.1002/ejp.704
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Funding
- Government of Catalonia (AGAUR) [2009 SGR 434]
- Universitat Rovira i Virgili (PFR program)
- RecerCaixa
- Spanish Ministry of Economy and Competitiveness (MINECO) [PSI2012-32471]
- Institucio Catalana de Recerca i Estudis Avancats
- National Institute of Child Health and Human Development [P01 ND/NS 33988]
- National Institute of Neurological Disorders and Stroke, National Institutes of Health
- MINECO
- The Earl Russell Chair in Pain Medicine, Western University, London, Ontario
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BackgroundThere is growing evidence confirming that youths with physical disabilities are at risk for chronic pain. Although many scales for assessing pain intensity exist, it is unclear whether they are all equally suitable for youths. The aim of this study was to address this knowledge gap by comparing the validity of the Numerical Rating Scale (NRS-11), the Wong Baker FACES Pain Rating Scale (FACES), and a 6-point categorical Verbal Rating Scale (VRS-6) for assessing pain intensity among youths (aged 8-20) with physical disabilities. MethodsOne hundred and thirteen youths (mean age=14.19years; SD=2.9) were interviewed and asked to rate their current pain intensity and recalled (in the past week) worst, least, and average pain with the NRS-11 and the FACES. Participants were also asked to rate their average pain intensity during the past 4weeks using a VRS-6, and were administered measures assessing pain interference, disability and psychological functioning. ResultsAnalyses showed that all of the pain intensity measures were associated positively with each other. Nevertheless, the NRS-11 appeared to out-perform both the VRS-6 and in particular the FACES scale with respect to: (1) the associations with the validity criterion (i.e. pain interference, disability and psychological functioning) and (2) a lack of any moderating effect of age on the association between the measure and the criterion variables. ConclusionsThe findings support the validity of the NRS-11 for assessing pain intensity in youths with physical disabilities between the ages of 8 and 20years.
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