Video Versus Paper to Report Impact of Lower Limb OA

In this randomized trial, researchers compared the video Animated Activity Questionnaire (AAQ) versus the Hip Osteoarthritis Outcome Score/Knee Osteoarthritis Score (HOOS/KOOS) paper questionnaires in evaluating the impact of lower limb osteoarthritis (OA) on function to determine whether they correlated with one another and whether the order of administration affected results. Patients were stratified into two groups based on which test was administered first. A student T-test was used to compare between-group differences, and the Spearman correlation coefficient between the two scores was calculated for each group and compared by Fisher z-transformation. A total of 188 patients (mean age, 65.8 years; 66% were female) completed the questionnaires, of whom 99 were in the AAQ first group and 89 were in the HOOS/KOOS first group. In the AAQ first group, the AAQ score (standard deviation [SD]) was 85.9 (13.7) compared with 87.8 (13.1) in the HOOS/KOOS first group (P=0.34). The HOOS/KOOS scores (SD) were 72.5 (21.2) versus 73.5 (18.4), respectively (P=0.71). In the AAQ first group, the Spearman correlation coefficient between the two techniques was 0.84 (95% confidence interval [CI], 0.77-0.89), and in the HOOS/KOOS first group, the Spearman correlation coefficient was 0.73 (95% CI, 0.61-0.81)—between-group correlations significantly differed (P=0.02). The researchers concluded that video AAQ and paper HOOS/KOOS questionnaire were significantly correlated and observed that order of administration played a moderately significant role, with a stronger correlation when the videos were viewed first.

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