Kristian Thorborg's Phd Thesis

aseline score.[8] Both SRM and ES are calculated at the 4-month assessment, compared with
baseline.
RESULTS
Prospective clinical study
A prospective clinical study was designed to assess validity, reliability and responsiveness. The
study was conducted at the Orthopaedic Department, Amager Hospital, Copenhagen. The Danish
ethics committee of the Capital Region, and the Danish Data Protection Agency approved the
study. Patients were recruited from primary and secondary care. One hundred and twenty-six
patients were screened for eligibility during a clinical consultation by a doctor or a physiotherapist.
One hundred and one patients were included in the study and they completed the HAGOS and SF-
36 questionnaires at the initial consultation. Patients were sent the HAGOS after 1 week and asked
to complete the questionnaire a second time and return it by mail as soon as possible. At the 4-
month follow-up, the HAGOS and the GPE score were sent by mail, and completed at home. At the
4-month follow-up, patients who did not respond within 3 weeks received one reminder via email
or telephone. Eighty-seven patients (87%) responded at the 4-month follow-up (Figure 11). The
clinical study included 50 women and 51 men, mean age 36 years, range 18 to 63 years. Patient
characteristics including age, height, weight, BMI, physical activity level, pain duration and pain
medication use are shown in Table 7.
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