. Author manuscript; available in PMC: 2020 Nov 1.

Published in final edited form as: J Arthroplasty. 2019 Dec 27;35(5):1200–1207.e4. doi: 10.1016/j.arth.2019.12.038

Table 5:

Clinically meaningful thresholds and sensitivity to change

Knee- Δ KOOS (2y - bl)	KOOS pain, Mean (SD)		KOOS Function, Mean (SD)
Improvement	MCID “A little improvement”	RID “Moderate improvement”	MCID “A little improvement”	RID “Moderate improvement”
Quality of life	20.96 (18.36)	29.52 (18.29)	14.20 (17.60)	23.31 (16.34)
Worsening	MCID “The quality of my life is worse”	---------------	MCID “The quality of my life is worse”	---------------
Quality of life	4.36 (22.67)	---------------	−2.86 (20.42)	---------------
Hip- Δ HOOS (2y - bl)	HOOS pain, Mean (SD)		HOOS Function, Mean (SD)
Improvement	MCID “A little improvement”	RID “Moderate improvement”	MCID “A little improvement”	RID “Moderate improvement”
Quality of life	22.50 (17.36)	33.85 (18.92)	18.05 (17.48)	28.54 (18.76)
Worsening	MCID “The quality of my life is worse”	---------------	MCID “The quality of my life is worse”	---------------
Quality of life	22.50 (17.36)	---------------	5.45 (28.41)	---------------

Deltas for H/KOOS mean SD, according to QOL Mean Clinically Important Difference/Really Important Difference (MCID/RID) category defined by QOL response

MCID= “a little improvement”

RID= “moderate improvement”