Reliability of a patient-rated forearm evaluation questionnaire for patients with lateral epicondylitis

J Hand Ther. Jan-Mar 1999;12(1):31-7. doi: 10.1016/s0894-1130(99)80031-3.


Purpose: 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.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Female
  • Forearm
  • Health Status Indicators*
  • Humans
  • Male
  • Occupational Diseases
  • Pain Measurement*
  • Reproducibility of Results
  • Surveys and Questionnaires*
  • Tennis Elbow*