Fig. 2From: The association of the STarT Back Screening Tool and type of leg pain with low back pain disability trajectories: a prospective cohort studyDisability trajectory of SBST categories for non-radiating LBP (model 3). Disability measured with the Oswestry Disability Index (higher score indicates worse functioning). The red line indicates the SBST high-risk group, the blue line indicates the SBST medium-risk group, the green line indicates the SBST low-risk groupBack to article page