Discordance Abounds in Minimum Clinically Important Differences in THA: A Systematic Review.
David G DeckeyJens T VerheyZachary K ChristopherColtin R B GerhartHenry D ClarkeMark J SpangehlJoshua S BinghamPublished in: Clinical orthopaedics and related research (2022)
We recommend using a 9-point increase as the MCID for the OHS, consistent with the median reported anchor-based value derived from several high-quality studies with large patient groups that used anchor-based approaches for MCID calculations, which we believe are most appropriate for most applications in clinical research. Likewise, we recommend using the anchor-based 33-point and 25-point MCIDs for the HOOS Pain and Quality of Life subscores, respectively. We encourage using anchor-based MCID values of WOMAC Pain, Function, and Stiffness subscores, which were 29, 26, and 30, respectively.