Fig. 7

Estimated treatment effects (difference in mean change) at two selected thresholds of the three predefined scores. The estimates are based on a model that assumed a linear change in the treatment effect in dependence on the score values. Negative estimates indicate an advantage for chiropractic treatment. Interactions refer to the difference in treatment effects between the two selected values. Negative interactions indicate a more pronounced advantage of chiropractic care in the case of larger score values. The selected values refer to the 10th and 90th percentile of each score