Table 5 Overall results (across all groups) N = 129
From: Refractory chronic migraine: long-term follow-up using a refractory rating scale
Initial QOL (2000) = 17 (3–30 scale, 30 = worst) | Final QOL (2010) = 11.4 (33% improvement) |
Initial pain level (2000) = 7.96 (1–10 scale, 10 = worst) | Final pain level (2010) = 4.76 (40% improvement) |