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Relationships of fear, anxiety, and depression with physical function in patients with knee osteoarthritis.

Abstract：

OBJECTIVES:To explore whether the psychologic variables anxiety, depression, and fear-avoidance beliefs, and interactions between these variables, are associated with physical function in patients with knee osteoarthritis (OA). We hypothesized lower levels of function would be related to higher anxiety, higher depression, and higher fear-avoidance beliefs, and that high levels of 2 of these factors simultaneously might interact to have a greater adverse effect on physical function. DESIGN:Cross-sectional, correlational design. SETTING:Institutional practice. PARTICIPANTS:Subjects included patients with knee OA (N=182; age, mean +/- SD, 63.9+/-8.8y; 122 women). INTERVENTIONS:Not applicable. MAIN OUTCOME MEASURES:Self-report measures of function included the Western Ontario and McMaster Universities (WOMAC) Osteoarthritis Index, the Lower Extremity Function Scale (LEFS), and the Knee Outcome Survey-Activity of Daily Living Scale. The Get Up and Go test was used as a physical performance measure of function. Self-report measures for psychologic variables included the Beck Anxiety Inventory, the Center for Epidemiological Studies Depression Scale, and the Fear Avoidance Belief Questionnaire-Physical Activity Scale modified for the knee. RESULTS:Higher anxiety was related to poorer function on the WOMAC physical function. Both high anxiety and fear-avoidance beliefs were related to poorer function on the LEFS and Knee Outcome Survey-Activity of Daily Living Scale. There was no association between the psychologic variables and the Get Up and Go test. The anxiety x depression interaction was associated with the LEFS. CONCLUSIONS:Anxiety and fear-avoidance beliefs are associated with self-report measures of function in patients with knee OA. Depression may influence scores on the LEFS under conditions of low anxiety.

journal_name

Arch Phys Med Rehabil

journal_title

Archives of physical medicine and rehabilitation

authors

Scopaz KA,Piva SR,Wisniewski S,Fitzgerald GK

doi

10.1016/j.apmr.2009.06.012

subject

Has Abstract

pub_date

2009-11-01 00:00:00

pages

1866-73

issue

eissn

0003-9993

issn

1532-821X

pii

S0003-9993(09)00613-3

journal_volume

pub_type

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Relationships of fear, anxiety, and depression with physical function in patients with knee osteoarthritis.