Limited responsiveness related to the minimal important difference of patient-reported outcomes in rare diseases.
Johnston BC, Miller PA, Agarwal A, Mulla S, Khokhar R, De Oliveira K, Hitchcock CL, Sadeghirad B, Mohiuddin M, Sekercioglu N, Seweryn M, Koperny M, Bala MM, Adams-Webber T, Granados A, Hamed A, Crawford MW, van der Ploeg AT, Guyatt GH
Journal of clinical epidemiology, 2016 11
doi: 10.1016/j.jclinepi.2016.06.010