Fig. 2
From: Long-term outcomes of occipital nerve stimulation for chronic migraine: a cohort of 53 patients
Responder rates of all chronic migraine patients to prolonged occipital nerve stimulation treatment by outcome measure. Various outcome measures have been used across the occipital nerve stimulation literature to measure response in chronic migraine. The response rate of the cohort is shown for each of these outcome measures – headache days, pain intensity and a combination of headache days and/or pain intensity. VRS verbal rating scale