Response Shift in Outcome Assessment in Patients Undergoing Total Knee Arthroplasty

Abstract

Listen

Translate article

To The Editor: In the paper “Response Shift in Outcome Assessment in Patients Undergoing Total Knee Arthroplasty,” (2006;88:2590-5), Razmjou and colleagues concluded that patients demonstrated a response shift and that this finding supports the need for accounting for response shift in clinical research. The implications of these findings are potentially profound. Unless authors account for response shift in randomized trials, for example, the findings should be questioned. The authors may indeed be right because response shift appears to be real1,2. However, we have a concern about the way in which …