Estimating minimally important differences for the PROMIS pain interference scales: results from 3 randomized clinical trials.

ABSTRACT: Minimally important difference (MID) refers to the smallest meaningful difference that carries implications for patient care. Minimally important differences are necessary to help interpret patient-reported pain outcomes in research and clinical practice. The PROMIS pain interference scales were validated across diverse samples; however, more information about their MIDs could improve their interpretability. The purpose of this study was to estimate MIDs for 4 fixed-length PROMIS pain interference scales, including the 6-item Pain Short Form and the 4-, 6-, and 8-item pain interference scales used in the PROMIS profile instruments. Data were analyzed from 3 randomized controlled trials (N = 759). The 3 samples, respectively, consisted of patients with chronic low back pain (n = 261), chron

SUBMITTER: Chen CX 

PROVIDER: S-EPMC5860950 | biostudies-literature | 2018 Apr

REPOSITORIES: biostudies-literature