3% [95% CI: 27, 40%]). Other commonly cited reasons related to access to care. Most migraineurs presenting to the ED have a PCP and health insurance. ED visits commonly result from an inability to access care elsewhere and because patients consider pain to be an emergency condition. Missed opportunities for diagnosis and treatment likely contribute to ED visits. “
“(Headache 2011;51:839-842) Significant sex differences exist in migraine and other headache disorders. Several hypotheses have been proposed to explain these differences, including fluctuations

in sex hormones AG-014699 chemical structure and receptor binding, genetic factors, differences in exposure to environmental stressors, as well as differences in response to stress and pain perception; but how valid are some of these findings and can we improve the quality of research in this field? It is notable that the preponderance of animal pain studies use male subjects to study a predominantly female disorder. Furthermore, with respect to headache and migraine sex differences, limited data have been derived from animal models. Additionally, although sex differences (based on the categorization of male vs female) may be more routinely evaluated in clinical headache research than in the basic science MK-8669 supplier research, greater attention to potential differences

across the life cycle of women (ie, premenopausal vs postmenopausal differences) and menstrual cycle is warranted. In this manuscript we define the differences between “sex” and “gender” and highlight the importance of their application and use in headache research. The enhanced recognition and implementation of attention to sex differences throughout the hormonal and life-cycle phase in both human and animal research will only help to strengthen and further our understanding of migraine and may help guide the direction of future headache research. “
“Objective.— To assess the frequency of opioid use for acute migraine treatment

and characterize use groups by sociodemographics, health-care resource utilization (HRU), comorbidities and probable dependence within a large, US population-based sample of persons with migraine. Background.— Opioids are used in the acute treatment of migraine. medchemexpress However, their use is controversial. Methods.— Data from the 2009 American Migraine Prevalence and Prevention (AMPP) study were used to categorize persons with migraine into 4 groups based on reported opioid use: nonusers (between 2005 and 2009), previous users (history of use between 2005 and 2008 but no-use in 2009), and current opioid users (those reporting use of opioids in the 3 months preceding the 2009 American Migraine Prevalence and Prevention survey). Current opioid users were divided into nondependent and probable dependence users according to criteria for dependence adapted for inclusion in the survey from the Diagnostic and Statistical Manual of Mental Disorders–4th edition.