Self-efficacy predicting outcome among fibromyalgia (FM) subjects

OBJECTIVES: This study examined whether pretreatment self-efficacy

and pre- to post-treatment changes in self-efficacy predict

post-treatment tender point index, disease severity, pain,

and physical activity.

METHODS: One hundred nine subjects

with fibromyalgia were assessed before and after a 6-week

training intervention. Measures included tender point index,

physician ratings of disease severity, the visual analog scale

for pain, the Physical Activities subscale of the Arthritis

Impact Measurement Scales, and the Arthritis Self-Efficacy


RESULTS: Pretreatment self-efficacy significantly

predicted post-treatment physical activity, with higher

self-efficacy associated with better physical activity

outcome. Changes in self-efficacy significantly predicted

post-treatment tender point index, disease severity, and

pain; improvements in self-efficacy were associated with

better outcomes on each measure.

CONCLUSIONS: Higher levels of self-efficacy are associated with better outcome, and may mediate the effectiveness of rehabilitation-based treatment programs for fibromyalgia.

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