Dementia is a very common disease, but the general population's knowledge about its main etiology, Alzheimer's disease (AD), is still poor, leading to delayed seeking of healthcare services, less prevention of disease by lifestyle changes and more difficulty in managing the care of the demented. Objective: To measure knowledge about AD in a Brazilian sample, taking into account some demographic variables. Methods: A link to a self-administered online questionnaire was sent by email and via other social media to anyone older than 18 years old. Our questionnaire contained sociodemographic questions and the Alzheimer's Disease Knowledge Scale (ADKS), a well-established scale comprising 30 “true or false” questions about AD. Results: 1,414 people (1,076 females), with a mean age of 42.3 years (SD ± 14.1), and 87.4% having more than 11 years of schooling, answered the online questionnaire. The mean total score for the ADKS was 21.6 out of 30 points (SD ± 3.73); however when we excluded health professionals (36.4% of the sample), it dropped to 20.5/30 (SD ± 3.51). The scores were positively influenced by educational level, professional skills (better for health professionals, mainly physicians) and by age (younger than 65 years). Being a caregiver or family member did not influence the knowledge about disease. Discussion: Despite the high prevalence of AD, few studies have been conducted in Brazil regarding the population's knowledge about the disease. Our study revealed a lack of information about AD in our country, even in relatives and caregivers of demented patients.

Cognitive impairment is very common in stroke patients and underdiagnosed. Symptoms such as language, praxis, visuospatial, visuoconstructive and memory impairment are prominent. The screening cognitive tests available do not address some specific characteristics of stroke patients and have major limitations in relation to the most impaired cognitive domains.Objective:To test the applicability of a Brazilian version of the Oxford Cognitive Screen in a convenience sample of individuals with normal cognition.Methods:Thirty neurologically healthy participants underwent the OCS-Br in this pilot study.Results:The mean score on each task was: naming: 3.4 (SD=0.72) (maximum value of 4); semantics: 3 (SD=0) (maximum 3); orientation: 4 (SD=0) (maximum 4); visual field: 4 (SD=0) (maximum 4); sentence reading: 14.53 (SD: 1) (maximum 15); number writing: 2.86 (0.6) (maximum 3); calculation: 3.8 (SD=0.48) (maximum 4); and accuracy on the broken hearts test: 47.3 (3.3) (maximum 50). The scores obtained were similar to those of the English original sample.Conclusion:We observed similar values on each separate OCS task in comparison to the original test, confirming that the Brazilian Portuguese version is comparable to other studies.

Introduction: Primary headaches are common conditions. In Brazil, the prevalence of migraine is 15.2%, tension-type headache 13% and chronic daily headache (CDH) 6.9%. Although frequent disorders a proportion of patients are undertreated. Patients patterns of headache care can trend toward acute medication only and those in need of prevention may not receive it. Objective: To estimate the rates of preventive treatment in primary headache sufferers. Methods: A telephone interview containing questions about headache and socio-demographic characteristics was applied to 3,848 people from 27 States of Brazil, in its five geographical regions. We considered MIDAS > 10 points as a marker for the need of preventive treatment. Patients were asked if they were taking any medication on a daily basis or any treatment to prevent headaches from happening. Subjects were divided into: 1. Those who responded positively for the question regarding preventive treatment regardless of the treatment type. 2. Those who responded positively for the question, but only medications or treatments studied for migraine prevention, labeled as "Correct treatment" 3. Those who responded positively for the question, but only medications or treatments from the prevention consensus (Brazilian Headache Society), labeled as "Consensus treatment" Results: In total, 12.8% of primary headache sufferers had MIDAS higher than 10, meeting criteria for prophylactic treatment, but only 8.4% of them reported it, 3.9% were using a right preventive treatment. The percentage of patients in need for prevention was 24.7% in migraine, 15.6 % in probable migraine, 5 % for tension-type headache (TTH) and 4% for probable TTH. Only 2.6% of migraineurs, 7.5% of probable migraine patients, 4.3% of tension-type headache and 0% of probable TTH received proper preventive treatment Conclusion: Primary headaches are common, debilitating conditions but a substantial proportion of those who might need prevention do not receive it. Patient education, public health initiatives in order to deliver migraine and other primary headaches treatment for the general population should be considered not only in Brazil, but worldwide.

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