Fig. 2

Mean reported quality of life by headache status (assessed using WHOQoL-8 scale, range 8–40; error bars: 95% confidence intervals; pMOH: probable medication-overuse headache; H15 + : headache on ≥ 15 days/month; TTH: tension-type headache)
Mean reported quality of life by headache status (assessed using WHOQoL-8 scale, range 8–40; error bars: 95% confidence intervals; pMOH: probable medication-overuse headache; H15 + : headache on ≥ 15 days/month; TTH: tension-type headache)