Measuring perceived activity limitations in lower extremity Complex Regional Pain Syndrome type 1 (CRPS I): test-retest reliability of two questionnaires

Abstract

Objective: To assess the test–retest reliability of two questionnaires for measuring activity limitations in patients with Complex Regional Pain Syndrome type 1 (CRPS I) of the lower extremity.

Design: Patients filled out the Walking Stairs Questionnaire and the Questionnaire Rising and Sitting Down twice during a one-week period.

Setting: Outpatient pain clinic of a university hospital.

Patients: Twenty-one outpatients with CRPS I of the lower extremity.

Results: The Walking Stairs Questionnaire and the Questionnaire Rising and Sitting Down were reliable in terms of test–retest reliability as expressed by Spearman's r (range 0.79–0.90 and 0.85–0.89 respectively) and the ICC (range 0.78–0.84 and 0.84–0.87 respectively).

Conclusion: Both questionnaires form a reliable tool for measuring activity limitations of patients with CRPS I of a lower extremity.

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