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Table 1 Internal consistency.

From: Cross-cultural adaptation and determination of the reliability and validity of PRTEE-S (Patientskattad Utvärdering av Tennisarmbåge), a questionnaire for patients with lateral epicondylalgia, in a Swedish population

Pain scale   Function scale
Question ICC   Question ICC
1 0.94   6 0.95
2 0.94   7 0.95
3 0.93   8 0.96
4 0.96   9 0.92
5 0.88   10 0.97
    11 0.97
    12 0.99
    13 0.97
    14 0.95
    15 0.95
Pain    Function  
Sum scale 0.78   Sum scale 0.95
   n = 54 Overall score 0.95
  1. Intraclass correlation coefficients (ICC) of the test-retest reliability of the PRTEE-S (Patientskattad Utvärdering av Tennisarmbåge).