29 results on '"Clarke, Ann"'
Search Results
2. Demographic characteristics associated with food allergy in a Nationwide Canadian Study
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Clarke, Ann E., Elliott, Susan J., St. Pierre, Yvan, Soller, Lianne, La Vieille, Sebastien, and Ben-Shoshan, Moshe
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- 2021
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3. Investigating self‐reported food allergy prevalence in Waterloo Region, Canada.
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Cardwell, Francesca S., Clarke, Ann E., and Elliott, Susan J.
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FOOD allergy , *HEALTH care rationing , *PERCENTILES , *FOOD intolerance , *BIVARIATE analysis , *PUBLIC spaces , *UNIVARIATE analysis - Abstract
While food allergy prevalence has been studied at the national level, we know little of food allergy prevalence or perceptions of prevalence/management at the local level. This paper uses Waterloo Region as a case study to 1) document self‐reported individual and household food allergy and sensitivity prevalence at the local level; 2) investigate perceptions of food allergy prevalence; and 3) explore perceived confidence in anaphylaxis management. Survey data were collected from January to March 2019. Respondents (n = 500) self‐reported individual and household food allergy and sensitivity, estimated the percentage of Canadians with food allergy, and were queried about their knowledge of food allergy management. Prevalence estimates were weighted to the structure of the 2016 Canadian Census, and univariate and bivariate analysis were conducted. Prevalence of self‐reported food allergy was 12.1% (95%CI, 8.8%‐15.3%), and prevalence of self‐reported food sensitivity was 26.3% (95%CI, 21.9%‐30.7%). When asked to estimate the percentage of Canadians with food allergy, the mean perceived percentage was 35.1% (SD = 22.96). Self‐reported prevalence of food allergy appears higher in Waterloo Region, and the estimated percentage of Canadians with food allergy is inflated. Understanding prevalence and perceptions at the local level is important for targeted allocation of public health resources to ensure safe spaces for individuals with food allergy. Key Messages: Compared to national prevalence estimates, individual self‐reported prevalence of food allergy appears higher in Waterloo Region.The estimated percentage of Canadians with food allergy is almost four times the actual self‐reported prevalence of food allergy in Canada.Inflated perception of food allergy prevalence has implications for local‐level food allergy management, to ensure safe public spaces for individuals affected by food allergy. [ABSTRACT FROM AUTHOR]
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- 2023
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4. Duration of skin prick test refractory period following food‐induced allergic reactions.
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Mulé, Pasquale, Prosty, Connor, Mazer, Bruce, Ke, Danbing, Lejtenyi, Duncan, Beaudette, Liane, Upton, Julia, Chan, Edmond S., Clarke, Ann, Zhang, Xun, Gabrielli, Sofianne, and Ben‐Shoshan, Moshe
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ALLERGIES ,SKIN tests ,PEANUT allergy ,VENOM hypersensitivity ,MILK allergy ,FOOD allergy - Abstract
Keywords: allergic reaction; allergy diagnosis; anaphylaxis; food allergy; skin prick test EN allergic reaction allergy diagnosis anaphylaxis food allergy skin prick test 1059 1061 3 10/09/23 20231001 NES 231001 Key messages A 4-6-week refractory period for skin prick testing following allergic reaction is commonly assumed. Allergic reaction, allergy diagnosis, anaphylaxis, food allergy, skin prick test Duration of skin prick test refractory period following food-induced allergic reactions. [Extracted from the article]
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- 2023
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5. Food Allergy: Temporal Trends and Determinants
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Ben-Shoshan, Moshe, Turnbull, Elizabeth, and Clarke, Ann
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- 2012
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6. Specific IgE antibody levels during and after food‐induced anaphylaxis.
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Rehimini, Salma, Gabrielli, Sofianne, Langlois, Alexandra, Clarke, Ann E., De Schryver, Sarah, McCusker, Christine, Bretholz, Adam, Zhang, Xun, Shand, Greg, and Ben‐Shoshan, Moshe
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ANAPHYLAXIS ,FOOD allergy ,ATOPY ,IMMUNOGLOBULIN E ,IMMUNOLOGIC diseases ,CHILD patients - Abstract
Keywords: anaphylaxis; food allergy; IgE; paediatrics EN anaphylaxis food allergy IgE paediatrics 364 368 5 02/24/21 20210201 NES 210201 To the Editor: Food-induced allergic reactions are diagnosed through corroboration of a suggestive clinical history with appropriate confirmatory tests. We did not compare changes in sIgE in food-induced anaphylaxis versus drug- or venom-induced anaphylaxis. In conclusion, our study shows that following anaphylaxis, sIgE levels to culprit food allergens increase, while sIgE levels to unrelated tolerated foods do not change substantially. Further studies with a larger sample size and additional time-points before and after anaphylaxis are needed to better assess the temporal trends of sIgE levels and characterize its role in diagnosing the cause of anaphylaxis. [Extracted from the article]
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- 2021
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7. Phenotype consensus is required to enable large‐scale genetic consortium studies of food allergy.
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Asai, Yuka, Martino, David, Eiwegger, Thomas, Nadeau, Kari, Koppelman, Gerard H., Clarke, Ann E., Lee, Young‐Ae, Chan, Edmond S., Simons, Elinor, Laprise, Catherine, Mazer, Bruce, Marenholz, Ingo, Royce, Diana, Elliott, Susan J., Hampson, Christine, Gerdts, Jennifer, Eslami, Aida, Soller, Lianne, Hui, Jennie, and Azad, Meghan
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FOOD allergy ,PHENOTYPES ,SYMPTOMS - Published
- 2020
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8. Management and diagnosis of exercise‐associated anaphylaxis cases in the paediatric population.
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Bartolucci, Sabrina, Gabrielli, Sofianne, Clarke, Ann, Chan, Edmond S., Upton, Julia, O‐Keefe, Andrew, Eisman, Harley, and Ben‐Shoshan, Moshe
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DIAGNOSIS ,EXERCISE-induced anaphylaxis ,FOOD allergy ,CHILD patients - Abstract
To the Editor, According to the consensus definition of anaphylaxis used in our study, anaphylaxis is defined as a reaction involving two organ systems or hypotension in response to an allergen. Hence, upon diagnosis of an allergy, patients are recommended to avoid the allergen and always carry an epinephrine auto-injector (EAI).1 Anaphylaxis is reported to affect 2% of the population. These patients are able to tolerate both exercise and the food allergen independently, as long as a significant amount of time separates the two.4 We define FIA as anaphylaxis that is food induced. [Extracted from the article]
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- 2021
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9. Consumer preferences for food allergen labeling.
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Marra, Carlo A., Harvard, Stephanie, Grubisic, Maja, Galo, Jessica, Clarke, Ann, Elliott, Susan, and Lynd, Larry D.
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CONSUMER preferences ,ALLERGY treatment ,FOOD allergy ,FOOD habits ,FOOD labeling ,FOOD packaging ,FOOD preservation - Abstract
Background: Food allergen labeling is an important tool to reduce risk of exposure and prevent anaphylaxis for individuals with food allergies. Health Canada released a Canadian food allergen labeling regulation (2008) and subsequent update (2012) suggesting that research is needed to guide further iterations of the regulation to improve food allergen labeling and reduce risk of exposure. Objective: The primary objective of this study was to examine consumer preferences in food labeling for allergy avoidance and anaphylaxis prevention. A secondary objective was to identify whether different subgroups within the consumer population emerged. Methods: A discrete choice experiment using a fractional factorial design divided into ten different versions with 18 choice-sets per version was developed to examine consumer preferences for different attributes of food labeling. Results: Three distinct subgroups of Canadian consumers with different allergen considerations and food allergen labeling needs were identified. Overall, preferences for standardized precautionary and safety symbols at little or no increased cost emerged. Conclusion: While three distinct groups with different preferences were identified, in general the results revealed that the current Canadian food allergen labeling regulation can be improved by enforcing the use of standardized precautionary and safety symbols and educating the public on the use of these symbols. [ABSTRACT FROM AUTHOR]
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- 2017
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10. The Risk of Recurrent Anaphylaxis.
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O'Keefe, Andrew, Clarke, Ann, St. Pierre, Yvan, Mill, Jennifer, Asai, Yuka, Eisman, Harley, La Vieille, Sebastien, Alizadehfar, Reza, Joseph, Lawrence, Morris, Judy, Gravel, Jocelyn, Ben-Shoshan, Moshe, O'Keefe, Andrew, and Graveli, Jocelyn
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Objectives: To determine the recurrence rate of anaphylaxis in children medically attended in an emergency department (ED), we performed a prospective cohort study to evaluate prehospital and ED management of children with recurrent anaphylaxis and to assess factors associated with recurrent anaphylaxis.Study Design: As part of the Cross-Canada Anaphylaxis Registry, parents of children with anaphylaxis identified prospectively in 3 EDs and through an emergency medical response service were contacted annually after presentation and queried on subsequent reactions. Cox regression analysis determined factors associated with recurrence.Results: Among 292 children who were registered as having had medical attended anaphylaxis, 68.5% completed annual follow-up questionnaires. Forty-seven patients experienced 65 episodes of anaphylaxis during 369 patient-years of follow-up. Food was the trigger in 84.6% of cases, and epinephrine was used in 66.2%. In 50.8%, epinephrine was used outside the health care facility, and 81.7% were brought to a health care facility for treatment. Asthma, reaction triggered by food, and use of epinephrine during the index episode increased the odds of recurrent reaction. Patients whose initial reaction was triggered by peanut were less likely to have a recurrent reaction.Conclusions: We report a yearly anaphylaxis recurrence rate of 17.6% in children. There is substantial underuse of epinephrine in cases of anaphylaxis. Educational programs that promote effective avoidance strategies and prompt use of epinephrine are required. [ABSTRACT FROM AUTHOR]- Published
- 2017
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11. Disclosing food allergy status in schools: health-related stigma among school children in Ontario.
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Dean, Jennifer, Fenton, Nancy E., Shannon, Sara, Elliott, Susan J., and Clarke, Ann
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DISCLOSURE laws ,FOOD allergy ,INTERVIEWING ,RESEARCH methodology ,RESEARCH evaluation ,RESEARCH funding ,SCHOOLS ,SELF-disclosure in adolescence ,SELF-disclosure in children ,SOCIAL isolation ,SOCIAL stigma ,QUALITATIVE research ,INTER-observer reliability - Abstract
In 2006, 3 years after the tragic death of 13-year-old Sabrina Shannon, the Province of Ontario (Canada) passed Sabrina's Law ushering in a new era of focus and concern for severe food allergic children at risk of anaphylaxis. Questions were raised at the time regarding the potential of doing more harm than good with the new legislation. This paper reports the experiences of health-related stigma among food allergic children at risk of anaphylaxis who were required to disclose their health status under this new legislation. In 2008, in-depth interviews were conducted with 20 children and youth and their parents in order to explore the experiences living with a severe food allergy. This particular study explores their experiences of felt and enacted stigma in the school setting as a result of the disclosure process. Interviews were tape recorded with permission and transcribed for subsequent thematic analysis using NVIVO, a qualitative analysis software package. Results indicate that participants were stigmatised as a result of protective school policies under the law, and that created tension between their physical safety and social well-being. Sabrina's Law also led to a cultural shift in awareness of food allergies that resulted in some participants normalising their health status, offering promising directions for the future. [ABSTRACT FROM AUTHOR]
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- 2016
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12. Low income, high risk: the overlapping stigmas of food allergy and poverty.
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Minaker, Leia M., Elliott, Susan J., and Clarke, Ann
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PSYCHOLOGICAL adaptation ,ADRENALINE ,ANAPHYLAXIS ,ATTITUDE (Psychology) ,FOOD allergy ,FOOD relief ,HEALTH services accessibility ,HYGIENE ,INCOME ,INTERVIEWING ,LONGITUDINAL method ,RESEARCH methodology ,MEDICAL personnel ,POVERTY ,RESEARCH funding ,STEREOTYPES ,SOCIAL stigma ,QUALITATIVE research ,EDUCATIONAL attainment ,THEMATIC analysis ,INTER-observer reliability ,DATA analysis software ,PATIENTS' attitudes ,ATTITUDES toward illness - Abstract
The aim of this study was to explore experiences and coping strategies of low-income families affected by food allergies. Of particular interest were experiences of allergy-related stigma within the context of poverty stigma. A secondary objective was to offer suggestions for refining a conceptual model of disease stigma. In-depth interviews with 23 individuals (10 key informants and 13 low-income adults affected by food allergies in southwestern Ontario, Canada) were conducted in 2012–2013. Participants reported feeling forced to adopt income-related stigmatized behaviors to obtain food and perceived difficulty in obtaining medication. Participants adopted cognitive distancing strategies to separate themselves from other low-income families affected by food allergies. Key informants frequently perceived low-income allergic individuals to be less vigilant than higher income individuals and attributed higher rates of allergy among higher income individuals to fewer unhygienic exposures and infections in early childhood. Both low-income participants and key informants perceived that inadequate education was a barrier to allergy management: key informants perceived a lack of education as an individual-level failure, while low-income participants perceived the lack of education as a system-level failure. Our findings revealed intersections between allergy stigma and poverty stigma. Results can be used to suggest additions to a conceptual model of disease stigma. Differing perspectives between key informants and low-income individuals have implications for strategies to improve access to education, safe food, and medication for low-income families affected by food allergies. [ABSTRACT FROM PUBLISHER]
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- 2015
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13. Eczema in Early Childhood, Sociodemographic Factors and Lifestyle Habits Are Associated with Food Allergy: A Nested Case-Control Study.
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Ben-Shoshan, Moshe, Soller, Lianne, Harrington, Daniel W., Knoll, Megan, La Vieille, Sebastian, Fragapane, Joseph, Joseph, Lawrence, St. Pierre, Yvan, Wilson, Kathie, Elliott, Susan J., and Clarke, ann E.
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ECZEMA in children ,SOCIODEMOGRAPHIC factors ,FOOD allergy ,LIFESTYLES & health ,CASE-control method - Abstract
Background: Studies suggest an increase in food allergy prevalence over the last decade, but the contributing factors remain unknown. The aim of this study was to evaluate the association between the most common food allergies and atopic history, sociodemographic characteristics and lifestyle habits. Methods: We conducted a case-control study nested within the SPAACE study (Surveying Prevalence of Food Allergy in All Canadian Environments) - a cross-Canada, random telephone survey. Cases consisted of individuals with probable food allergy (self-report of convincing symptoms and/or physician diagnosis) to milk, egg, peanut, tree nut, shellfish, fish, wheat, soy, or sesame. Controls consisted of nonallergic individuals, matched for age. Cases and controls were queried on personal and family history of atopy, sociodemographic characteristics and lifestyle habits. Multivariate logistic regression was used to evaluate the association between atopy, sociodemographic characteristics and lifestyle habits with probable food allergy. Results: Between September 2010 and September 2011, 480 cases and 4,950 controls completed the questionnaire. For all 9 allergens, factors associated with a higher risk of probable allergy were as follows: (1) personal history of eczema (in the first 2 years of life), asthma or hay fever (odds ratio, OR 2.3, 95% CI 1.6-3.5; OR 2.8, 95% CI 2.2-3.6, and OR 2.3, 95% CI 1.8-3.0, respectively), (2) maternal, paternal or sibling's food allergy (OR 3.7, 95% CI 2.5-5.6; OR 3.0, 95% CI 1.8-5.1, and OR 3.1, 95% CI 2.2-4.2), (3) high household income (top 20%; OR 1.5, 95% CI 1.2-2.0). Males and older individuals were less likely to have food allergy (OR 0.7, 95% CI 0.6-0.9, and OR 0.99, 95% CI 0.99-1.00). Eczema in the first 2 years of life was the strongest risk factor for egg, peanut, tree nut and fish allergy. Conclusions: This is the largest population-based nested case-control study exploring factors associated with food allergies. Our results reveal that, in addition to previously reported factors, eczema in the first 2 years of life is consistently associated with food allergies. © 2015 S. Karger AG, Basel [ABSTRACT FROM AUTHOR]
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- 2015
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14. Rate, Triggers, Severity and Management of Anaphylaxis in Adults Treated in a Canadian Emergency Department.
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asai, Yuka, Yanishevsky, Yarden, Clarke, ann, La Vieille, Sebastian, Delaney, J. Scott, alizadehfar, Reza, Joseph, Lawrence, Mill, Christopher, Morris, Judy, and Ben-Shoshan, Moshe
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ANAPHYLAXIS ,ALLERGIES ,DISEASE management ,ADRENALINE ,TERTIARY care ,THERAPEUTICS - Abstract
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. © 2014 S. Karger AG, Basel [ABSTRACT FROM AUTHOR]
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- 2014
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15. Exploring Perceptions and Experiences of Food Allergy among New Canadians from Asia.
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Lu, Stephanie K., Elliott, Susan J., and Clarke, Ann E.
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FOOD allergy ,DISEASE prevalence ,IMMIGRANTS ,SOCIAL isolation ,SKEPTICISM ,QUALITY of life - Abstract
Introduction. In Canada, perceived prevalence of food allergy surpasses systematic estimates. Canadian immigrants have been found more likely to rate the risk of food allergy as "high" compared to nonimmigrants. Methods. Qualitative interviews were conducted with 3 key informants and 18 allergic individuals of East and Southeast Asian descent in order to capture their lived experience with food allergies. Results. Participants found food allergies to be more common in Canada than in Asia. Participants also agreed that having a food allergy is more manageable in Canada as a result of the policy environment (e.g., food labelling and school policies). In addition, participants had dealt with skepticism and disbelief about their food allergy in Asia, resulting in social exclusion and impacting quality of life. Discussion. Findings demonstrate the need to recognize the varied impacts and experiences of food allergy among new Canadians, given that immigrants represent a large and growing proportion of the Canadian population. [ABSTRACT FROM AUTHOR]
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- 2014
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16. Exploring Low-Income Families' Financial Barriers to Food Allergy Management and Treatment.
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Minaker, Leia M., Elliott, Susan J., and Clarke, Ann
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ALLERGY treatment ,FOOD allergy ,LOW-income housing ,CHRONIC diseases ,ANAPHYLAXIS ,MEDICAL care costs ,SOCIAL support - Abstract
Objectives. Low-income families may face financial barriers to management and treatment of chronic illnesses. No studies have explored how low-income individuals and families with anaphylactic food allergies cope with financial barriers to anaphylaxis management and/or treatment. This study explores qualitatively assessed direct, indirect, and intangible costs of anaphylaxis management and treatment faced by low-income families. Methods. In-depth, semistructured interviews with 23 participants were conducted to gain insight into income-related barriers to managing and treating anaphylactic food allergies. Results. Perceived direct costs included the cost of allergen-free foods and allergy medication and costs incurred as a result of misinformation about social support programs. Perceived indirect costs included those associated with lack of continuity of health care. Perceived intangible costs included the stress related to the difficulty of obtaining allergen-free foods at the food bank and feeling unsafe at discount grocery stores. These perceived costs represented barriers that were perceived as especially salient for the working poor, immigrants, youth living in poverty, and food bank users. Discussion. Low-income families report significant financial barriers to food allergy management and anaphylaxis preparedness. Clinicians, advocacy groups, and EAI manufacturers all have a role to play in ensuring equitable access to medication for low-income individuals with allergies. [ABSTRACT FROM AUTHOR]
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- 2014
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17. Diagnosis and treatment of food allergies in off-reserve Aboriginal children in Canada.
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Harrington, Daniel W., Wilson, Kathi, Elliott, Susan J., and Clarke, Ann E.
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DIAGNOSIS of food allergies ,ALLERGY treatment ,FOOD allergy ,INDIGENOUS children ,PUBLIC health - Abstract
Copyright of Canadian Geographer is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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- 2013
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18. Altered T Helper 17 Responses in Children with Food Allergy.
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Dhuban, Khalid Bin, d'Hennezel, Eva, Ben-Shoshan, Moshe, McCusker, Christine, Clarke, ann, Fiset, Pierre, Mazer, Bruce, and Piccirillo, Ciriaco a.
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T helper cells ,IMMUNE response ,FOOD allergy ,PEANUT allergy ,INTERLEUKIN-17 ,CD4 antigen ,ALLERGY treatment - Abstract
Background: While a central role for the T helper (Th) 1/Th2 axis in food allergy has been established, the Th17 response in food-allergic humans has not been addressed. Methods: Th17 responses in 18 peanut-allergic children, who were also allergic to at least one additional food allergen, were assessed relative to 15 age-matched healthy controls. To account for the atopy background in the allergic children, 7 atopic, but not food-allergic, individuals and their age-matched controls were included in this study. PBMCs were analyzed by flow cytometry ex vivo or were stimulated in vitro with peanut allergens, gliadin, or tetanus toxoid followed by analysis of proliferation and cytokine production in antigen-responsive cells. Results: We observed a significantly lower interleukin (IL) 17 production in CD4+ T cells of food-allergic individuals ex vivo (p < 0.02). In vitro, we found that IL-17 production in CD4+ T cells in response to all antigens tested was significantly impaired in food-allergic subjects compared to healthy controls (Ara: p < 0.005; gliadin: p < 0.004; TT: p < 0.03). No significant differences were observed between atopic and nonatopic individuals with no food allergy. Conclusion: Our results thus reveal a systemic, non-allergen-specific defect in Th17 responses to antigen stimulation in food allergic individuals, suggesting a role for Th17 cells in the control of food allergy and implicating IL-17 as a potential biomarker for tolerance to food antigens. © 2013 S. Karger AG, Basel [ABSTRACT FROM AUTHOR]
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- 2013
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19. HLA-DQB1*02 and DQB1*06:03P are associated with peanut allergy.
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Madore, Anne-Marie, Vaillancourt, Vanessa T, Asai, Yuka, Alizadehfar, Reza, Ben-Shoshan, Moshe, Michel, Deborah L, Kozyrskyj, Anita L, Becker, Allan, Chan-Yeung, Moira, Clarke, Ann E, Hull, Peter, Daley, Denise, Sandford, Andrew J, and Laprise, Catherine
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PEANUT allergy ,FOOD allergy ,IMMUNOLOGIC diseases ,HLA histocompatibility antigens ,RESPIRATORY allergy - Abstract
Peanut allergy (PA) is a common and serious food allergy and its prevalence has increased in the past decade. Although there is strong evidence of inheritance, the genetic causes of this disease are not well understood. Previously, a large-scale genome-wide association study described an association between human leukocyte antigen (HLA)-DQB1 and asthma; the aim of this study was to evaluate the association between HLA-DQB1 and PA. Genotypic and allelic profiles were established for 311 Caucasian members of a well-described Canadian group of children with PA and 226 Caucasian controls. Firth's logistic regression analyses showed associations between HLA-DQB1 alleles and PA for DQB1*02 (P=1.1 × 10
−8 , odds ratio (OR)=0.09 (CI=0.03-0.23)) and DQB1*06:03P alleles (P=2.1 × 10−2 , OR=2.82 (CI=1.48-5.45)). This study of HLA in PA demonstrates specific association between two allelic groups of the HLA-DQB1 gene (DQB1*02 and DQB1*06:03P) and PA, highlighting its possible role in the development of this disease. [ABSTRACT FROM AUTHOR]- Published
- 2013
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20. Exploring the Determinants of the Perceived Risk of Food Allergies in Canada.
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Harrington, Daniel W., Elliott, Susan J., Clarke, Ann E., Ben-Shoshan, Moshe, and Godefroy, Samuel
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FOOD allergy ,HEALTH risk assessment ,REGRESSION analysis ,RISK perception - Abstract
Food allergies are emerging health risks in much of the Western world, and some evidence suggests prevalence is increasing. Despite lacking scientific consensus around prevalence and management, policies and regulations are being implemented in public spaces (e.g., schools). These policies have been criticized as extreme in the literature, in the media, and by the non-allergic population. Backlash appears to be resulting from different perceptions of risk between different groups. This article uses a recently assembled national dataset (n = 3,666) to explore how Canadians perceive the risks of food allergy. Analyses revealed that almost 20% self-report having an allergic person in the household, while the average respondent estimated the prevalence of food allergies in Canada to be 30%. Both of these measures overestimate the true clinically defined prevalence (7.5%), indicating an inflated public understanding of the risks of food allergies. Seventy percent reported food allergies to be substantial risks to the Canadian population. Multivariate logistic regression models revealed important determinants of risk perception including demographic, experience-based, attitudinal, and regional predictors. Results are discussed in terms of understanding emerging health risks in the post-industrial era, and implications for both policy and risk communication. [ABSTRACT FROM AUTHOR]
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- 2012
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21. Frames, claims and audiences: Construction of food allergies in the Canadian media.
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Harrington, Daniel W., Elliott, Susan J., and Clarke, Ann E.
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FOOD allergy ,MASS media ,PUBLIC health ,ESTIMATION theory ,CLAIMS making ,HEALTH risk assessment - Abstract
Food allergies are newly emerging health risks, and some evidence indicates that their prevalence is increasing. Public perception, however, is that the prevalence of food allergies is much greater than systematic estimates suggest. As food allergies increasingly permeate everyday life, this paper explores how associated risks are constructed through the mass media. In particular, nine years of media coverage of food allergies are analysed through the lens of issue framing and claims-making. Results show that advocates and affected individuals dominate discussions around policy action, while researchers and health professionals are diagnosing the causes of food allergy. Results also suggest that there is competition over the definition of food allergies, which may, in turn, be shaping public understanding of the related risks. There is also an indication that the framing of food allergies is evolving over time, and that the discussion is becoming increasingly one-sided with affected individuals leading the charge. [ABSTRACT FROM AUTHOR]
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- 2012
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22. The use of incentives in vulnerable populations for a telephone survey: a randomized controlled trial.
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Knoll, Megan, Soller, Lianne, Ben-Shoshan, Moshe, Harrington, Daniel, Fragapane, Joey, Joseph, Lawrence, La Vieille, Sebastien, St-Pierre, Yvan, Wilson, Kathi, Elliott, Susan, and Clarke, Ann
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TELEPHONE surveys ,PUBLIC opinion polls ,FOOD allergy ,HOUSEHOLDS ,CLINICAL trials ,GEODESY - Abstract
Background: Poor response rates in prevalence surveys can lead to nonresponse bias thereby compromising the validity of prevalence estimates. We conducted a telephone survey of randomly selected households to estimate the prevalence of food allergy in the 10 Canadian provinces between May 2008 and March 2009 (the SCAAALAR study: Surveying Canadians to Assess the Prevalence of Common Food Allergies and Attitudes towards Food LAbeling and Risk). A household response rate of only 34.6% was attained, and those of lower socioeconomic status, lower education and new Canadians were underrepresented. We are now attempting to target these vulnerable populations in the SPAACE study (Surveying the Prevalence of Food Allergy in All Canadian Environments) and are evaluating strategies to increase the response rate. Although the success of incentives to increase response rates has been demonstrated previously, no studies have specifically examined the use of unconditional incentives in these vulnerable populations in a telephone survey. The pilot study will compare response rates between vulnerable Canadian populations receiving and not receiving an incentive. Findings: Randomly selected households were randomly assigned to receive either a $5 incentive or no incentive. The between group differences in response rates and 95% confidence intervals (CIs) were calculated. The response rates for the incentive and non-incentive groups were 36.1% and 28.7% respectively, yielding a between group difference of 7.4% (-0.7%, 15.6%). Conclusion: Although the wide CI precludes definitive conclusions, our results suggest that unconditional incentives are effective in vulnerable populations for telephone surveys. [ABSTRACT FROM AUTHOR]
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- 2012
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23. A population-based study on peanut, tree nut, fish, shellfish, and sesame allergy prevalence in Canada.
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Ben-Shoshan, Moshe, Harrington, Daniel W., Soller, Lianne, Fragapane, Joseph, Joseph, Lawrence, St Pierre, Yvan, Godefroy, Samuel B., Elliot, Susan J., and Clarke, Ann E.
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FOOD allergy ,DISEASE prevalence ,SHELLFISH ,ANAPHYLAXIS ,METHODOLOGY - Abstract
Background: Recent studies suggest an increased prevalence of food-induced allergy and an increased incidence of food-related anaphylaxis. However, prevalence estimates of food allergies vary considerably between studies. Objectives: To determine the prevalence of peanut, tree nut, fish, shellfish, and sesame allergy in Canada. Methods: Using comparable methodology to Sicherer et al in the United States in 2002, we performed a cross-Canada, random telephone survey. Food allergy was defined as perceived (based on self-report), probable (based on convincing history or self-report of physician diagnosis), or confirmed (based on history and evidence of confirmatory tests). Results: Of 10,596 households surveyed in 2008 and 2009, 3666 responded (34.6% participation rate), of which 3613 completed the entire interview, representing 9667 individuals. The prevalence of perceived peanut allergy was 1.00% (95% CI, 0.80%-1.20%); tree nut, 1.22% (95% CI, 1.00%-1.44%); fish, 0.51% (95% CI, 0.37%-0.65%); shellfish, 1.60% (95% CI, 1.35%-1.86%); and sesame, 0.10% (95% CI, 0.04%-0.17%). The prevalence of probable allergy was 0.93% (95% CI, 0.74%-1.12%); 1.14% (95% CI, 0.92%-1.35%); 0.48% (95% CI, 0.34%-0.61%); 1.42% (95% CI, 1.18%-1.66%); and 0.09% (95% CI, 0.03%-0.15%), respectively. Because of the infrequency of confirmatory tests and the difficulty in obtaining results if performed, the prevalence of confirmed allergy was much lower. Conclusion: This is the first nationwide Canadian study to determine the prevalence of severe food allergies. Our results indicate disparities between perceived and confirmed food allergy that might contribute to the wide range of published prevalence estimates. [Copyright &y& Elsevier]
- Published
- 2010
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24. Peanut allergy: an overview.
- Author
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Al-Muhsen, Saleh, Clarke, Ann E., and Kagan, Rhoda S.
- Subjects
- *
PEANUTS , *ALLERGIES , *FOOD allergy - Abstract
PEANUT ALLERGY ACCOUNTS FOR THE MAJORITY of severe food-related allergic reactions. It tends to present early in life, and affected individuals generally do not outgrow it. In highly sensitized people, trace quantities can induce an allergic reaction. In this review, we will discuss the prevalence, clinical characteristics, diagnosis, natural history and management of peanut allergy. [ABSTRACT FROM AUTHOR]
- Published
- 2003
25. Does Affluence Affect Allergy Preparedness?
- Author
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Clarke, Ann and Joseph, Lawrence
- Subjects
FOOD allergy ,PEANUTS ,INCOME ,PREPAREDNESS - Abstract
Presents the author's views on questions related to the increase in the prevalence of food allergy. Information on the research activity in Canada on peanut allergy, which causes most severe, food-induced allergic reactions; Question on the effectiveness of school policies to reduce accidental exposure of students to allergies; Evidence that household income may be related to allergy preparedness.
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- 2005
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26. Food-induced anaphylaxis: Clinical highlights and knowledge gaps.
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Ben-Shoshan, Moshe and Clarke, Ann E
- Subjects
- *
ANAPHYLAXIS , *FOOD allergy , *SKIN tests , *ADRENALINE , *BRONCHODILATOR agents - Abstract
The article offers information on food-induced anaphylaxis. It states that the diagnosis of an Immunoglobulin E (IgE)-mediated food allergy requires corroboration of the patient's clinical history with appropriate confirmatory tests, including skin prick tests, food-specific IgE levels and food challenges. It mentions that delay in the administration of epinephrine is associated with poor outcome and the benefits of epinephrine use far outweigh the risks in healthy people.
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- 2012
- Full Text
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27. “Ne nnipadua mmpe” (the body hates it): Exploring the lived experience of food allergy in Sub-Saharan Africa.
- Author
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Atiim, George A., Elliott, Susan J., and Clarke, Ann E.
- Subjects
- *
FOOD allergy , *PSYCHOLOGY of the sick , *SOCIAL stigma , *SOCIAL attitudes , *HEALTH literacy , *ATTITUDES toward illness , *PSYCHOLOGY - Abstract
Allergic diseases have closely followed the rise of non-communicable diseases (NCDs) especially in western societies. As prevalence of NCD is increasing in sub-Saharan Africa (SSA), researchers are hinting that the same future may hold for (food) allergic disease in this world region. Already, researchers are beginning to record prevalence, though with little attention to the social experience of individuals and parents with food allergic children. This paper presents the first qualitative analysis of the daily realities of adults and parents of children with allergies in SSA using Ghana as a case study. Drawing on political ecology of health, this study contextualizes the psychological (e.g. anxiety and fear), social (e.g. stigmatization, social exclusion), and economic (e.g. impact on work & household expenditures) wellbeing of affected persons within the broader sociocultural environment. By exploring the sociocultural environment, the results provide insights into the likely structures (e.g. the lack of familiarity, absence of local discursive repertoire on food allergy, infrastructure deficit) which interact to shape anxiety, and social exclusion of people with allergy. The case study provides evidence suggesting food allergies do have a global reach, and policy makers must heed the message to integrate food allergy into the broader chronic disease prevention agenda. [ABSTRACT FROM AUTHOR]
- Published
- 2018
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28. "What the mind does not know, the eyes do not see". Placing food allergy risk in sub-Saharan Africa.
- Author
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Atiim, George A., Elliott, Susan J., Clarke, Ann E., and Janes, Craig
- Subjects
- *
FOOD allergy , *EPIDEMIOLOGY , *HEALTH risk assessment , *POLITICAL ecology , *EDUCATION - Abstract
Policy makers and health geographers are increasingly intrigued by the global rise of chronic disease. While current engagement coalesce around cardiovascular disease, cancers, chronic respiratory disease, and diabetes, very little attention has been given to other important chronic conditions: e.g., allergic disease. Concerns about how health is shaped by context and experienced in place can provide important insights to understand the trajectory of allergic disease and inform policy especially in developing countries experiencing an epidemiologic transition. Using Ghana as a case study. this paper draw on theories of political ecology of health to enhance our understanding of how individual (e.g. care seeking behaviours), sociocultural (e.g. lack of education and awareness), health system (e.g. absence of logistics) and policy environments (e.g. absence of policy) influence the ways in which food allergy is perceived, diagnosed and managed. These findings highlight the need for decision makers to target structural factors that impede access to and utilization of healthcare, diagnostic practices, as well as food allergy coping and management strategies. Moreover, the findings highlight the need for a global health agenda that pays critical attention to place-based factors in the construction of emerging health risks. [ABSTRACT FROM AUTHOR]
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- 2018
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29. Management of anaphylaxis in schools: Evaluation of an epinephrine auto-injector (EpiPen®) use by school personnel and comparison of two approaches of soliciting participation
- Author
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Nguyen Luu Nha, Cicutto Lisa, Soller Lianne, Joseph Lawrence, Waserman Susan, St-Pierre Yvan, and Clarke Ann
- Subjects
Anaphylaxis ,Epinephrine ,Food allergy ,School ,Treatment ,Selection bias ,Consent bias ,Volunteer bias ,Immunologic diseases. Allergy ,RC581-607 - Abstract
Abstract Background There has been no large study characterizing selection bias in allergy and evaluating school personnel’s ability to use an epinephrine auto-injector (EpiPen®). Our objective was to determine if the consent process introduces selection bias by comparing 2 methods of soliciting participation of school personnel in a study evaluating their ability to demonstrate the EpiPen®. Methods School personnel from randomly selected schools in Quebec were approached using a 1) partial or 2) full disclosure approach and were assessed on their ability to use the EpiPen® and identify anaphylaxis. Results 343 school personnel participated. In the full disclosure group, the participation rate was lower: 21.9% (95%CI, 19.0%-25.2%) versus 40.7% (95%CI, 36.1%-45.3%), but more participants achieved a perfect score: 26.3% (95%CI, 19.6%-33.9%) versus 15.8% (95%CI, 10.8%-21.8%), and identified 3 signs of anaphylaxis: 71.8% (95%CI, 64.0%-78.7%) versus 55.6% (95%CI, 48.2%-62.9%). Conclusions Selection bias is suspected as school personnel who were fully informed of the purpose of the assessment were less likely to participate; those who participated among the fully informed were more likely to earn perfect scores and identify anaphylaxis. As the process of consent can influence participation and bias outcomes, researchers and Ethics Boards need to consider conditions under which studies can proceed without full consent. Despite training, school personnel perform poorly when asked to demonstrate the EpiPen®.
- Published
- 2012
- Full Text
- View/download PDF
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