title: Reliability of a patient-rated forearm evaluation questionnaire for patients with lateral epicondylitis.
abstract: OBJECTIVE
  To determine the reliability of a questionnaire designed to assess forearm pain and function in patients with lateral epicondylitis.
  
  
  METHODS
  Forty-seven patients with unilateral lateral epicondylitis completed a patient-related forearm evaluation questionnaire (PRFEQ) on two occasions. Intraclass correlation coefficients (ICC 2,1), standard error of measurement (SEM), and 95% confidence intervals (CIs) were determined for the whole group and for three subgroup comparisons of male vs. female subjects, subacute vs. chronic lateral epicondylitis, and work-related vs. non-work-related lateral epicondylitis.
  
  
  RESULTS
  The test-retest reliability for the overall PRFEQ (ICC, 0.89), and its pain (ICC, 0.89) and function (ICC, 0.83) subscales was excellent. Test-retest reliability for patients with work-related lateral epicondylitis (ICC, 0.80) was significantly (p = 0.018) less than for patients with non-work-related lateral epicondylitis (ICC, 0.94).
  
  
  CONCLUSIONS
  The PRFEQ can provide a simple, quick, and reliable estimate of arm pain and function in patients with lateral epicondylitis. However, large SEM and 95% CIs limit its ability to accurately predict individual scores.
authors: School of Physical Therapy, University of Western Ontario, London, Canada.
authors: T J
authors: TJ
authors: Overend
authors: J L
authors: JL
authors: Wuori-Fearn
authors: J F
authors: JF
authors: Kramer
authors: J C
authors: JC
authors: MacDermid
mesh_terms: D005260:Female; D005542:Forearm; D006305:Health Status Indicators; D006801:Humans; D008297:Male; D009784:Occupational Diseases; D010147:Pain Measurement; D015203:Reproducibility of Results; D011795:Surveys and Questionnaires; D013716:Tennis Elbow