Table 3

Association of VR-12 with SF-12 and PROMIS-PF following minimally invasive surgery transforaminal lumbar interbody fusion.

Patient-Reported Outcome Measure	Pearson, r	P Value^a	Partial, r	P Value^a
VR-12 vs SF-12
Preoperative	0.917	<0.001	0.913	<0.001
6 wk	0.964	<0.001	0.963	<0.001
12 wk	0.973	<0.001	0.973	<0.001
6 mo	0.965	<0.001	0.960	<0.001
1 y	0.973	<0.001	0.972	<0.001
VR-12 vs PROMIS-PF
Preoperative	0.583	<0.001	0.572	<0.001
6 wk	0.727	<0.001	0.710	<0.001
12 wk	0.793	<0.001	0.792	<0.001
6 mo	0.832	<0.001	0.823	<0.001
1 y	0.845	<0.001	0.844	<0.001

Note: Boldface indicates statistical significance.
aP value signifes significant correlation.
PROMIS-PF, patient-reported outcomes measurement information system physical function; SF-12, Short Form 12-Item Survey; VR-12, Veterans RAND 12-Item Health Survey.