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Table 2 Distribution of findings in 475 chiropractic patients in relation to the three STarT back screening tool risk groups.

From: Feasibility of the STarT back screening tool in chiropractic clinics: a cross-sectional study of patients with low back pain

  Low Risk n = 282 Medium Risk n = 139 High Risk n = 54 p-value
Duration, %     0.2
< 2 weeks 32 34 17  
- 3 months 34 36 44  
> 3 months 34 30 39  
> 30 days LBP preceding year, % 51 59 76 < .01
Leg pain, % 26 64 69 < .01
Number of LBP days during the last 2 weeks, median (IQR) 7 (3 - 12) 10 (6 - 14) 14 (10 - 14) < .001
  1. IQR = Interquartile range.