. Author manuscript; available in PMC: 2019 Jun 1.

Published in final edited form as: Spine (Phila Pa 1976). 2018 Jun 1;43(11):747–753. doi: 10.1097/BRS.0000000000002479

Table 4.

Percentage of Patients that Reached A Minimal Clinically Important Difference (MCID) from Baseline to 2 Years

	All (n=105)	No SAE (n=78)	SAE (n=27)	P value
SRS-22r Pain (%)	54.3	50.0	66.7	0.134
SRS-22r Function (%)	26.7	25.6	29.6	0.686
SRS-22r Self Image (%)	32.4	35.9	22.2	0.191
SRS-22r Mental Health (%)	36.2	43.6	14.8	0.010
SRS-22r Subscore (%)	29.5	30.8	25.9	0.634
Oswestry Disability Index (%)	9.5	10.3	7.4	1.000
SF-12 Mental Component Score (%)	31.4	34.6	22.2	0.217
SF-12 Physical Component Score (%)	34.3	32.1	40.7	0.437

SAE=Serious Adverse Event; SRS=Scoliosis Research Society

MCID thresholds: SRS-22r (0.4), ODI (10), SF-12 (5)¹⁷