Table 1.

The Minimal Clinical Important Difference for Each Patient-Reported Outcome Measure Utilized.

Patient-Reported Outcome Measure	Literature Values
PROMIS Mental Health	2.9 [31]
PROMIS Physical Health	1.9 [31]
PROMIS Pain NRS	1 [33,34]
PROMIS Pain Intensity 3a	3.7a
PROMIS Pain Interference	2.35 [35]
PROMIS Anxiety	2.3 [35]
HOOS JR	6.4 [36]
KOOS JR	7 [36,37]

PROM, patient-reported outcome measure; PROMIS, Patient-Reported Outcome Measure Information System; NRS, numeric rating scale; HOOS JR, Hip Disability and Osteoarthritis Outcome Score Joint Replacement; KOOS JR, Knee Disability and Osteoarthritis Outcome Score Joint Replacement.

^aLiterature values for these PROMs have not been reported and thus ½ standard deviation method for calculating the minimally clinical important difference was utilized [31].