• Clin J Pain · Sep 2002

    Observational visual analog scale in pediatric pain assessment: useful tool or good riddance?

    • Monique van Dijk, Hans M Koot, Huda Huijer Abu Saad, Dick Tibboel, and Jan Passchier.
    • Department of Pediatric Surgery, Sophis Children's Hospital, University of Limburg, Maastricht, The Netherlands. vandijk@psys.azr.nl
    • Clin J Pain. 2002 Sep 1; 18 (5): 310-6.

    DesignThe authors reviewed the available pediatric pain literature and selected those studies that reported quantitative information on the reliability and validity of, and the optimal cutoff points for, the visual analog scale (VAS) when used as an observational pediatric pain tool.ResultsAvailable psychometric findings concerning the observational VAS (VAS obs ) are limited. The estimated interrater reliability of the VAS (obs) from 9 studies ranged from 0.36 to 0.91. The correlation between self-report and the VAS (obs) was variable and ranged 0.23 to 0.83 in 6 studies. The concurrent validity of the VAS (obs) and other pain instruments ranged from 0.42 to 0.86.ConclusionsFurther psychometric testing needs to be conducted on intraobserver reliability, responsiveness, and optimal cutoff points. Future research may guide the choice between VAS (obs) and the numerous behavioral pain instruments.

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