• Acta Anaesthesiol Scand · Apr 2012

    Reliability and validity of the Swedish version of the modified Yale Preoperative Anxiety Scale.

    • M Proczkowska-Björklund, I Gimbler Berglund, and E Ericsson.
    • Division of Child and Adolescent Psychiatry, Department of Clinical and Experimental Medicine, Linköping University, Linköping, Sweden.
    • Acta Anaesthesiol Scand. 2012 Apr 1; 56 (4): 491-7.

    BackgroundThe modified Yale Preoperative Anxiety Scale (m-YPAS) is an observational behavioral checklist that has been widely used as an indicator of pre-operative anxiety in children. The present study describes the translation process of m-YPAS into Swedish and the testing of its reliability and validity when used with Swedish children.MethodsThe questionnaire was translated using standard forward-back-forward translation technique. The validation process was divided into two phases: a pilot study with 61 children as a first version and a test of a final version with 102 children.ResultsThe reliability tested with Cronbach's alpha was acceptable to good. Interrater reliability analyzed with weighted kappa was acceptable to good with Students Registered Nurse Anesthetists and Certified Registered Nurse Anesthetist (CRNA) as evaluators (phase 1) and good to excellent with CRNA's very experienced in child anesthesia (phase 2). Both concurrent and constructed validity could be demonstrated.ConclusionThis validation study of the Swedish version of the m-YPAS shows good consistency, interrater validity, and construct validity when used by experienced assessors.© 2011 The Authors Acta Anaesthesiologica Scandinavica © 2011 The Acta Anaesthesiologica Scandinavica Foundation.

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