Journal of pain and symptom management
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J Pain Symptom Manage · Oct 2004
Randomized Controlled Trial Comparative Study Clinical TrialPsychometric update of the Functional Interference Estimate: a brief measure of pain functional interference.
The Functional Interference Estimate (FIE) is a brief, 5-item self-report measure that assesses the degree to which pain interferes with daily functioning. While the FIE has demonstrated reliability and validity with a small normative sample, not much is known about its reliability and validity with a broad sample of individuals with pain. ⋯ The FIE has excellent internal consistency and appears to have strong convergent validity with other well-established measures of function (e.g., SF-36 and Dartmouth COOP Charts). Because of its brevity and flexibility, the FIE may be a useful self-report measure of pain functional interference in clinical research on pain.