Usefulness of the Core Outcome Measures Index in Daily Clinical Practice for Assessing Patients with Degenerative Lumbar Disease

Table 2

Preoperative and 2-year postoperative scores and magnitude of change.

Health status measures	Preoperative		Postoperative		Difference		SMR
	Mean	SD	Mean	SD	Mean	SD
ODI	45.60	17.85	36.60	22.24	−8.76*	19.43	−0.451
COMI	3,77	0.76	2.60	0.53	−1.07*	1.19	−0.899
Pain	3.88	0.89	2.79	1.27	−1.13*	1.28	−0.883
Function	3.99	1.12	2.90	1.53	−1.01*	1.68	−0.601
Well-being	4.83	0.47	3.19	1.49	−1.60*	1.48	−1.081
Disability	3.35	1.67	1.89	1.29	−1.01*	1.85	−0.546
Satisfaction	2.81	1.09	2.21	1.34	−0.61*	1.15	−0.530
SF36v2
Physical Function (PF)	29.29	9.48	36.68	12.79	7.18*	12.05	0.596
Role physical (RP)	30.66	8.76	21.17	4.37	−9.79*	9.46	−1.035
Bodily pain (BP)	30.25	6.99	39.10	12.56	8.87*	12.54	0.707
General health (GH)	42.16	9.01	39.83	11.98	−1.90**	11.13	−0.171
Vitality (VT)	35.35	9.36	44.17	12.01	8.82*	11.69	0.755
Social function (SF)	30.45	13.71	39.68	13.89	8.56*	15.71	0.545
Role emotional (RE)	36.26	14.82	16.10	5.39	−20.38*	13.91	−1.465
Mental health (MH)	39.40	10.64	37.90	11.92	−1.09	1.77	−0.085
PCS	30.90	7.41	36.66	10.89	6.38*	10.9	0.585
MCS	39.91	12.28	32.78	9.76	−6.10*	12.50	−0.488
VAS
Back	7.55	2.15	5.40	3.41	2.01*	3.34	0.601
Sciatica	7.62	2.62	4.18	3.47	2.39*	3.81	−0.627

* 𝑃<0.001, **𝑃<0.05.
Sensitivity to change (SMR): low ≈ 0.2; moderate ≈ 0.5. High > 0.8.