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Table 3 Correlation coefficients between both the SBSTa and physiologic measures, and outcome variables at follow-upsb

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