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This study examines the impact of hip arthroplasty on information processing speed pre- and post-operation, with statistical significance analysis within and between groups.
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Figure 2. Median and mean quartile of rate of information processing (bit/s)pre- and postoperation with assessment of significance of differences between and within both groups. Significance between groups—TA1:p = 0.13; TA2: p = 0.09; TA3: p = 0.03.* Significance within groups—play group: p = 0.03;* control group: p = 0.68. *Significance set at p =0.05. TA1 = time point of assessment 1 day preoperation, TA2 = time point of assessment 2 days postoperation, TA3 = point of assessment9 days postoperation. Brem MH, Lehrl S, Rein AK, Massute S, Schulz-Drost S, Gelse K, Schlechtweg PM, Hennig FF, Olk A, Jacob HJ, Gusinde J. Stop of loss of cognitive performance during rehabilitation after total hip arthroplasty—Prospective con-trolled study. J Rehabil Res Dev. 2010;47(9):891–98. DOI:10.1682/JRRD.2010.01.0011