Methods.— Throughout all regions of China, 5041 non-related adult respondents aged 18-65 years were randomly sampled from the general population according to the expanded programme on immunization method FK506 concentration established by World Health Organization. They were visited by door-to-door calling and surveyed using the structured questionnaire developed by Lifting The Burden, translated into Chinese and adapted to Chinese culture after a pilot study. Results.—

The responder rate was 94.1%. The estimated 1-year prevalence of primary headache disorders was 23.8% (95% confidence interval 22.6-25.0%), of migraine 9.3% (95% confidence interval 8.5-10.1%), of tension-type headache (TTH) 10.8% (9.9-11.6%), and of chronic

daily headache (CDH) 1.0% (0.7-1.2%). Of respondents with migraine, TTH, and CDH, moderate or severe impact and therefore high need for effective medical care were reported by 38.0%, 23.1%, and 47.9%, respectively. CP-673451 datasheet The World Health Organization quality of life-8 questionnaire showed that all 3 types of headache reduced life quality. The total estimated annual cost of primary headache disorders, including migraine, TTH, and CDH was CNY 672.7 billion, accounting for 2.24% of gross domestic product (GDP) (direct cost: CNY 108.8 billion, 0.36% of GDP; indirect cost: CNY 563.9 billion, 1.88% of GDP). Conclusion.— The prevalence of primary headaches is high in China and not dissimilar from the world average. These headaches cause disability, impair work, study and daily activities, decrease life quality, and bring about a heavy and hitherto

unrecognized socioeconomic burden. “
“Objective.— This study evaluated the effectiveness of a single fixed-dose tablet of sumatriptan 85 mg/naproxen sodium 500 mg (sumatriptan–naproxen) using a very early treatment paradigm in migraine patients whose attacks were historically accompanied by cutaneous allodynia. Background.— Evidence suggests that allodynic migraineurs may demonstrate a better response when treated prior to developing central sensitization, and that these patients are treated medchemexpress more effectively with a compound of sumatriptan and naproxen sodium than either drug alone. This study targeted patients who have accompanying allodynia using a very early treatment paradigm where treatment was initiated while symptoms were still mild. Methods.— This was an open-label prospective, outpatient study of adult migraineurs who had screened positive for cutaneous allodynia and typically experienced moderate to severe pain preceded by an identifiable mild pain phase. Patients were treated with sumatriptan–naproxen using a very early intervention paradigm in 4 test migraines over 12 weeks where dosage occurred within 30 minutes of symptom onset.