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. 2021 Sep 7;10(9):574–590. doi: 10.1302/2046-3758.109.BJR-2020-0443.R1

Table II.

Minimum clinically important difference units used for each patient-reported outcome measure.

PROM MCID unit
HOS-ADL 920
HOS-SSS 14.521
mHHS 8.221
HOOS pain 923
HOOS symptoms 923
HOOS ADL 623
HOOS sport and recreation 1023
HOOS QoL 1123
iHOT-33 1221
iHOT-12 922
NAHS 1024

HOOS-ADL, Hip disability and osteoarthritis outcome score - Activities of Daily Living; HOOS-QoL, Hip disability and osteoarthritis outcome score - Quality of Life; HOS-ADL, Hip Outcome Score - Activities of Daily Living; HOS-SSS, Hip Outcome Score - Sport Specific Subscales; iHOT, International Hip Outcome Tool; MCID, minimal clinically important difference; mHHS, modified Harris Hip Score; NAHS, Non Arthritic Hip Score; PROM, patient-reported outcome measure.