Fig. 2

Estimated LBP trajectory 3 weeks before and after visits to a chiropractor, within the Adaptive Coper sub-group (n = 80), MC, Maintenance Care; LBP, Low Back Pain; CI, Confidence Interval; AC, Adaptive Coper; The final GEE model was fitted with an unstructured correlation structure and included the variables: ‘Treatment group’, ‘Time (treatment period)’ and ‘Time (treatment period)* Time (treatment period)’