BMC Musculoskeletal Disorders

Table 3 Correlation coefficients between both the SBST^a and physiologic measures, and outcome variables at follow-ups^b

From: Chronic low back pain clinical outcomes present higher associations with the STarT Back Screening Tool than with physiologic measures: a 12-month cohort study

Variables	Disability				Pain intensity				Fear of movement
Variables	T1	T2	T3	T4	T1	T2	T3	T4	T1	T2	T3	T4
Prone MVC^c (N)	−0.26^*	−0.33^**	−0.16	−0.25	−0.04	−0.13	0.14	−0.10	0.04	0.13	0.32^*	0.00
Lateral MVC (N)	−0.08	−0.29^*	−0.12	−0.30^*	−0.08	−0.25	−0.01	−0.03	0.05	0.07	0.22	0.09
SBST score	0.31^**	0.27^*	0.27^*	0.22^*	0.17	0.10	0.18	0.34^**	0.21^*	0.15	0.18	0.16

Available paired data range from 49 down to 35 participants, due to technical problems and lost to follow-up
^*p < 0.05; ^**p ≤ 0.01
^aSTarT Back Screening Tool
^b2-month (T1), 4-month (T2), 6-month (T3) and 12-month (T4) follow-ups
^cMaximal isometric voluntary contraction

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