• J Pain · Jul 2017

    Psychometric evaluation of the Pain Attitudes Questionnaire-Revised for people with advanced cancer.

    • Kenneth Mah, Kim T Tran, Lynn R Gauthier, Gary Rodin, Camilla Zimmermann, David Warr, S Lawrence Librach, Malcolm Moore, Frances A Shepherd, and Lucia Gagliese.
    • Department of Supportive Care, Princess Margaret Cancer Centre, Toronto, Ontario, Canada; Department of Anesthesia and Pain Management, Toronto General Hospital, Toronto, Ontario, Canada.
    • J Pain. 2017 Jul 1; 18 (7): 811-824.

    AbstractPain-related stoicism and cautiousness are theorized to be more prevalent in older than younger patients and to lead to greater pain under-reporting and consequently inadequate pain management in older patients. The Pain Attitudes Questionnaire-Revised (PAQ-R), which measures 5 pain-related stoicism (fortitude, concealment, superiority) and cautiousness (self-doubt, reluctance) factors in chronic pain, can help test this hypothesis in advanced cancer but requires validation. We conducted a psychometric evaluation of the PAQ-R in 155 younger (younger than 60 years) and 114 older (aged 60 years and older) patients with advanced cancer. Participants showed disagreement with self-doubt items and floor effects with the subscale. Confirmatory factor analyses revealed good fit of the PAQ-R's 5 factors to younger and older groups' data but collinearity between fortitude and concealment. Multisample confirmatory factor analyses supported partial scalar invariance between age groups. Few hypothesized age-related differences were observed. Younger patients reported higher superiority scores than older patients. Whereas older patients showed greater fortitude and superiority with lower average pain intensity, younger patients showed greater concealment or fortitude with greater worst and average pain intensity. Furthermore, whereas older patients displayed greater superiority with lower interference in relations with others, younger patients displayed greater concealment and superiority with greater interference in walking ability and greater concealment and self-doubt with more interference in relations with others. Cross-validation of the PAQ-R's factor structure and identification of pathways to the factors and effect on pain-related outcomes using multivariate approaches are warranted.Copyright © 2017 American Pain Society. Published by Elsevier Inc. All rights reserved.

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