The Role of pain related anxiety in the functioning of patients with knee osteoarthritis in Malaysia.

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    Abstract

    The aim of this cross-sectional study was to investigate the
    relationship between pain related anxiety and the clinical
    outcomes of function and pain in a group of Malaysian
    patients with knee osteoarthritis (OA). A convenience sample
    of 61 patients with knee OA were recruited from Seberang
    Jaya hospital in Malaysia (18 male, 43 female; age 56±8years;
    range, 45-84years). Three participants were excluded from
    the analysis due to missing data.
    Function was measured using the Knee Injury and
    Osteoarthritis Outcome Score (KOOS), pain was measured
    using the (0-10) pain numerical rating scale, and pain related
    anxiety was measured using the Pain Anxiety Symptoms Scale
    (PASS). Age, gender, BMI and duration of pain were also
    recorded. Data was analysed using simple correlations and
    multiple regression. Pain related anxiety was a statistically
    significant independent predictor of function explaining 15%
    of the variance within a regression model with pain (15%) and
    age (5%) also making significant independent contributions to
    the model. In contrast, pain related anxiety though correlated
    with pain (r = 0.30, p=0.02) was not a statistically significant
    independent predictor of pain. Pain related anxiety is a
    significant independent predictor of function, but not pain,
    in Malaysian patients with OA knee. This is the first study to
    demonstrate a relationship between pain related anxiety and
    function in an OA knee pain sample in a non-westernised
    culture. The findings demonstrate the importance of pain
    related anxiety as a construct across cultures. Pain related
    anxiety should be addressed in the clinical management of
    Malaysian patients with OA knee.
    Original languageEnglish
    Pages (from-to)6
    Number of pages5
    JournalPain and Rehabilitation: The Journal of the Physiotherapy Pain Association
    Volume34
    Publication statusPublished - 1 Dec 2013

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