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Year : 2019  |  Volume : 25  |  Issue : 1  |  Page : 46--51

Validity and reliability of 11-face faces pain scale in the Iranian elderly community with chronic pain

1 Department of Gerontology, University of Social Welfare and Rehabilitation Sciences, Tehran, Iran
2 Gerontology and Geriatric Department, Medical School; Elderly Health Research Center, Endocrinology and Metabolism Population Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
3 Imam Ali Cardiovascular Research Center, Kermanshah University of Medical Sciences, Kermanshah, Iran

Correspondence Address:
Dr. Mahtab Alizadeh-Khoei
Department of Gerontology and Geriatrics, Medical School, Tehran University of Medical Sciences, Poursina Avenue, Enghelab Street, Tehran
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/IJPC.IJPC_126_18

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Background: Accurate pain assessment in elderly population is essential for pain management and nurses have a pivotal role. The 11-face Faces Pain Scale (FPS-11) is a well-established pain assessment measure that has not been validated in the Iranian elderly. Aim: The aim was to study the property assessment of the Iranian version of FPS-11 (FPS-11-IR) among elderly outpatients with chronic pain. Methods: This is a cross-sectional validation study that conducted in three outpatient clinics in Tehran, Iran, in 2017. Older people aged ≥60 years (n = 217) with chronic knee pain due to degenerative joint disease were participated. The construct validity was examined by applying contrast constructs, and the face validity was determined by rank-ordering test. To assess concurrent validity, the Spearman's correlation coefficient was calculated between the scores of 11-point Numeric Rating Scale (NRS) and FPS-11-IR. Test–retest reliability was determined in 1-week interval. Results: Most of elderly participants (72%) agreed that pain construct displays in faces of the FPS-11-IR and participants” agreement on face rank ordering were vary for each face, ranging from 80% to 100%. Spearman's correlation coefficient between FPS-11-IR and NRS scores was very strong (r = 0.91, P < 0.01). Intraclass correlation coefficient between test–retest scores was 0.96 that indicates excellent reliability. Conclusions: The FPS-11-IR is a reliable and valid pain assessment scale to use in geriatric patients chronic pain.


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