Table 3 Quality of life: year 2000 versus 2010
From: Refractory chronic migraine: long-term follow-up using a refractory rating scale
Initial degree of refractoriness | Initial QOL in 2000 (3–30, 30 = worst) | Final QOL in 2010 | % Improvement in QOL, 2000–2010 |
|---|---|---|---|
Mild (2–4 on refractory scale) N = 24: average # = 3.79 | 13.2 | 8.6 | 35% p < 0.001, effect size (ES) = 2.07 |
Moderate (5–7) N = 67: average # = 6.04 | 15.8 | 10.8 | 32% p < 0.001, ES = 1.30 |
Severe (8–10) N = 38: average # = 9.02 | 21.6 | 14.4 | 33% p < 0.001, ES = 1.50 |