• Ali Asghari and Michael K Nicholas.
• Department of Psychology, Shahed University, Tehran, Iran.
• Pain Med. 2009 May 1;10(4):619-32.

Objectives1) To determine the psychometric properties of a Persian-language version of the Pain Self-Efficacy Questionnaire (P-PSEQ) in Iranian chronic pain patients; and 2) to evaluate the validity of the P-PSEQ in another Iranian chronic pain sample.DesignCross-sectional designs.SettingTwo medical centers and a large industrial company.MethodIn Study 1, the P-PSEQ was administered to 348 chronic pain patients. In Study 2, 169 males with chronic pain who were working completed the P-PSEQ, Beck Depression Inventory, Roland-Morris Disability Questionnaire, Short Form Health Survey, and a pain scale.ResultsThe psychometric properties (internal consistency, test-retest reliability, construct validity, and concurrent validity) of the P-PSEQ were found to be strong. Multiple hierarchical regression analyses indicated that pain self-efficacy scores accounted for a significant proportion of the variance in scores on measures of disability, depression, and general health even after controlling for the possible confounding effects of pain severity and education.ConclusionThe psychometric properties of the P-PSEQ were confirmed. Consistent with findings in other countries with other language versions of the same scale, pain self-efficacy beliefs are associated with levels of physical disability, depression and general health status of chronic pain patients, over and above the influence of pain severity in this sample of Iranians with chronic pain.

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