Fig. 2From: Cost-effectiveness of stimulation of the sphenopalatine ganglion (SPG) for the treatment of chronic cluster headache: a model-based analysis based on the Pathway CH-1 studyCost-effectiveness results over time horizons of 3–7 years. Note: Considered willingness-to-pay threshold €50,000/QALY, based on [25]. Per common convention, no negative ICERs shown for range where SPG is dominatingBack to article page