O besity is a complex chronic disease in which abnormal or excess body fat (adiposity) impairs health, increases the risk of long-term medical complications and reduces lifespan. 1 Epidemiologic studies define obesity using the body mass index (BMI; weight/height 2), which can stratify obesity-related health risks at the population level. Obesity is operationally defined as a BMI exceeding 30 kg/m 2 and is subclassified into class 1 (30-34.9), class 2 (35-39.9) and class 3 (≥ 40). At the population level, health complications from excess body fat increase as BMI increases. 2 At the individual level, complications occur because of excess adiposity, location and distribution of adiposity and many other factors, including environmental, genetic, biologic and socioeconomic factors (Box 1). 11 Over the past 3 decades, the prevalence of obesity has steadily increased throughout the world, 12 and in Canada, it has increased threefold since 1985. 13 Importantly, severe obesity has increased more than fourfold and, in 2016, affected an estimated 1.9 million Canadian adults. 13 Obesity has become a major public health issue that increases health care costs 14,15 and negatively affects physical and psychological health. 16 People with obesity experience pervasive weight bias and stigma, which contributes (independent of weight or BMI) to increased morbidity and mortality. 17 Obesity is caused by the complex interplay of multiple genetic, metabolic, behavioural and environmental factors, with the latter thought to be the proximate cause of the substantial
To summarize information obtained from original research about barriers to access of primary healthcare by Canadian immigrants' and to identify research gaps. Electronic databases of primary research articles and grey literature were searched without restricting the time period. The preferred reporting items for systematic reviews and meta-analyses statement was followed for literature selection. Articles were selected based on three criteria: (a) the study population was Canadian legal immigrant(s), (b) the research was about the barriers to accessing primary healthcare in Canada, and (c) the article was written in English. Relevant information from the articles was extracted into tabular format and classified for thematic analysis. Identified barriers were grouped into five themes: cultural, communication, socio-economic status, healthcare system structure and immigrant knowledge. The barriers to accessing primary healthcare in each of these categories can provide insight and subsequent direction for changes needed to improve immigrant care and mitigate their deterioration in health status. The demographic and ethno-cultural distributions of the study populations across the provinces highlight the need to expand research to encompass more varied immigrant groups across more regions of Canada, including more research on male immigrants and immigrant seniors, and to increase research related to health care providers' perspectives on the barriers.
Patients routinely seek physicians' guidance about diet and the relation between nutrition and the prevention and treatment of disease. However, the adequacy of nutrition instruction in undergraduate medical education is questionable. The purpose of this study was to investigate Canadian medical students' perceptions of and satisfaction with their education in nutrition. At 9 universities across Canada, a 23-item survey questionnaire was distributed in English and French to undergraduate medical students after at least 8 months of medical school. Overall, 9 of 17 universities participated in the survey, and 933 of the 3267 medical students approached completed the survey (response rate, 28.6%). Mean satisfaction with nutrition instruction received during medical school was 4.7 (+/-0.06) on a scale of 1-10, where 1 is very dissatisfied and 10 is very satisfied, and there were significant differences among schools (p < 0.0001). Students were comfortable in their ability to counsel patients regarding basic nutrition concepts and the role of nutrition in prevention of disease, but were much less comfortable discussing the role of nutrition in the treatment of disease and nutrient requirements across the lifecycle, and in identifying credible sources of nutrition information. Of the 933 respondents, 87.2% believe that their undergraduate program should dedicate more time to nutrition education. The amount of nutrition instruction correlated with student satisfaction (p < 0.0001), but varied among schools. A significant number of students are dissatisfied with the nutrition education they receive and their ability to provide relevant and appropriate nutrition counselling. This study paves the way for further discussions and development of strategies to improve nutrition education in medical schools in Canada.
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