Overall prevalence of self-reported food allergy in Canada

Soller, Lianne; Ben‐Shoshan, Moshe; Harrington, Daniel W.; Fragapane, Joseph; Joseph, Lawrence; Pierre, Yvan St.; Godefroy, Samuel Benrejeb; Vieille, Sébastien La; Elliott, Susan J.; Clarke, Ann E.

doi:10.1016/j.jaci.2012.06.029

Cited by 187 publications

(119 citation statements)

References 9 publications

(9 reference statements)

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“…1 These figures are consistent with those reported in the United States, 2 and the United Kingdom 3 launching food allergies onto the public health agenda as an apparent 21st century epidemic. 4 Some key dimensions of food allergies have also received growing attention from the general public, policymakers, and the media 5 ; these are related to: (1) potential increases in prevalence, (2) uncertain etiology, (3) that children are disproportionately affected, 6 and (4) the life-threatening nature of severe food allergies.…”

Section: Introductionsupporting

confidence: 84%

“We don’t have such a thing, that you may be allergic”: Newcomers’ understandings of food allergies in Canada

et al. 2014

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Food allergies are emerging as important public health risks in Canada, affecting 3-4% of adults and 6-7% of children. Despite much lower prevalence rates among recent immigrants (i.e. in the country less than 10 years), evidence has shown this population to be more concerned about the risks of food allergies than the general population and have unique experiences around purchasing foods for allergen-free environments. As a substantial and growing segment of the Canadian population, it is important to understand newcomers' perceptions and knowledge of food allergies and related policies developed to protect allergic children (e.g. nut-free schools and or classrooms). This paper draws upon the results of focus groups conducted with newcomers from food allergic households (i.e. directly affected), as well as those with school-aged children who have to prepare or buy foods for allergen-controlled classrooms or schools (i.e. indirectly affected) living in Mississauga, Ontario. Results indicate unique challenges and understandings of food allergies as a new and unfamiliar risk for most newcomers, particularly as the indirectly affected participants negotiate the policy landscape. The directly affected group highlights the supportive environment in Canada resulting from the same policies and increased awareness in the general population.

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Section: Introductionsupporting

confidence: 84%

“We don’t have such a thing, that you may be allergic”: Newcomers’ understandings of food allergies in Canada

et al. 2014

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“…In contrast, in a study conducted by our research team in a tertiary care pediatric ED, we found that peanut is the major food trigger in children [21]. These results are expected given that shellfish is also the most common food allergen in Canadian adults and peanut is the second most common food allergy in Canadian children [27]. Shellfish allergy may account for the majority of food-triggered reactions in adults and not in children because shellfish introduction in Canada is usually delayed beyond the age of 5 years [28].…”

Section: Discussionmentioning

confidence: 83%

Rate, Triggers, Severity and Management of Anaphylaxis in Adults Treated in a Canadian Emergency Department

Asai

Yanishevsky²,

Clarke³

et al. 2014

Int Arch Allergy Immunol

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Background: The Cross-Canada Anaphylaxis Registry (C-CARE) assesses the triggers and management of anaphylaxis and identifies predictors of the development of severe allergic reactions and of epinephrine use. Here, we present data from an urban adult tertiary care emergency department (ED) in Montreal, Canada. Methods: Potential anaphylaxis cases were identified using ICD-10 codes related to anaphylaxis or allergic reactions. Putative cases underwent chart review to ensure they met anaphylaxis diagnostic criteria. Demographic, clinical and management data were collected. Multivariate logistic regressions were conducted to assess the effect of demographic characteristics, triggers, and comorbidities on severity and management of reactions. Results: Among 37,730 ED visits, 0.26% (95% CI 0.21, 0.32) fulfilled the definition of anaphylaxis. Food was the suspected trigger in almost 60% of cases. Epinephrine was not administered in almost half of moderate-to-severe cases, and similar numbers of individuals with moderate-to-severe reactions were not prescribed an epinephrine autoinjector. Reaction to shellfish was associated with more severe reactions (OR 13.9; 95% CI 2.2, 89.4). Older individuals and those not receiving steroids were more likely managed without epinephrine (OR 1.04; 95% CI 1.01, 1.07 and OR 2.97; 95% CI 1.05, 8.39, respectively). Conclusions: Anaphylaxis accounted for a substantial number of ED visits in adults, and the most common trigger was food. There is non-adherence to guidelines recommending epinephrine use for all cases of anaphylaxis. We postulate that this may be related to concerns regarding the side effects of epinephrine in adults.

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“…Some investigators have reported prevalence exceeding 20% in some regions,9,17 while others have shown prevalence under 10% 11,14. Estimated prevalence was reported to be 9.1% in the United States,12 8.3% in Canada,18 and 14.9% in Colombia 13. Fifteen studies on FH have been carried out in Latin America,19 (9 in Mexico); however, none of them had a population basis, so our study provides relevant information in this regard.…”

Section: Discussionmentioning

confidence: 99%

“…Although Mexico is one of the countries with the lowest per capita seafood consumption, compared to Japan, Spain, and the United States, the proportion of subjects with self-reported hypersensitivity to shellfish has been increased. The prevalence of hypersensitivity to fish and seafood was reported to be 0.4%-2.0% in the United States,24 and 0.6%-1.9% in Canada 18. In Denmark, the prevalence of hypersensitivity to fish was 0.6%, and that to seafood was 1.1% 21.…”

Section: Discussionmentioning

confidence: 99%

Food Hypersensitivity in Mexican Adults at 18 to 50 Years of Age: A Questionnaire Survey

Bedolla-Barajas

Bedolla-Pulido

Camacho-Peña

et al. 2014

Allergy Asthma Immunol Res

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PurposeThere is limited epidemiological evidence of food hypersensitivity (FH) in the adult population. We aimed to determine the prevalence of FH in Mexican adults, their clinical features and to establish common food involved in its appearance.MethodsWe designed a cross-sectional study using a fixed quota sampling; 1,126 subjects answered a structured survey to gather information related to FH.ResultsThe prevalence of FH in adults was 16.7% (95% CI, 14.5% to 18.8%), without statistical significant differences related to gender (women, 17.5% and men, 15.9%) or residential location. The most common clinical manifestations in adults with FH were oral allergy syndrome (70 of 1,126) and urticaria (55 of 1,126). According to category, fruits and vegetables were the most frequent foods to trigger FH (6.12%) and were individually related to shrimp (4.0%), and cow milk (1.5%). Adults under age 25 had a higher frequency of FH (OR, 1.39; 95% CI, 1.01 to 1.91, P <0.001). Personal history of any atopic disease was significantly associated with FH (P <0.0001).ConclusionsThe prevalence of FH is relatively high in Mexican adults, and FH is significantly associated with atopic diseases.

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Overall prevalence of self-reported food allergy in Canada

Cited by 187 publications

References 9 publications

“We don’t have such a thing, that you may be allergic”: Newcomers’ understandings of food allergies in Canada

“We don’t have such a thing, that you may be allergic”: Newcomers’ understandings of food allergies in Canada

Rate, Triggers, Severity and Management of Anaphylaxis in Adults Treated in a Canadian Emergency Department

Food Hypersensitivity in Mexican Adults at 18 to 50 Years of Age: A Questionnaire Survey

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