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Table 2 STarT Back Tool risk groups and 30% improvement in the Roland Morris Disability score

From: Predictive ability of the start back tool: an ancillary analysis of a low back pain trial from Danish general practice

STarT Back cut-off

Low vs Medium/High

Low/Medium vs High

Follow-up

RR

95% CI

P-value

RR

95% CI

P-value

4 weeks

1.64

(1.26–2.15)

< 0.001

1.71

(1.18–2.49)

0.002

8 weeks

1.38

(1.13–1.70)

0.003

1.61

(1.20–2.15)

< 0.001

52 weeks

1.21

(1.02–1.43)

0.040

1.36

(1.08–1.72)

0.003

  1. Note: Relative risk (RR) of not achieving a clinically relevant improvement in function (30% improvement in the Roland Morris Disability score). The higher RR comparing Low/Medium vs High is equivalent to more desirable functional outcomes for the ‘Low/Medium group’