Prevalence of food allergy in infants and pre-schoolers in Brazil

Gonçalves, LO; Guimarães, Tássia Cecília Pereira; Silva, R.M.; Cheik, Marina Fernandes Almeida; Nápolis, A.C. de Ramos; Silva, G. Barbosa e; Segundo, Gesmar Rodrigues Silva

doi:10.1016/j.aller.2016.04.009

Cited by 39 publications

(48 citation statements)

References 24 publications

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“…This rate is in line with WA prevalence data estimated in other surveys carried out in Latin American countries (Mexico, Colombia, Argentina, El Salvador; 0.72, 0.74, 0.33, 0.75%, respectively) and utilizing the same instrument [9,10,13,14]. The prevalence of food allergy, including wheat allergy (0.6%), in Brazilian infants was estimated by parent-report [29], but, to our knowledge, this is the first study that estimate the prevalence of WA in Brazilian adult population.…”

Section: Discussionsupporting

confidence: 86%

Prevalence of Adverse Reactions to Glutenand People Going on a Gluten-Free Diet:A Survey Study Conducted in Brazil

et al. 2020

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Background: The prevalence of gluten-related disorders (GRD) and adherence to a gluten-free diet (GFD) remains unknown in Brazilian population and there is no published information on the scientific literature about the proportion of Brazilians that were diagnosed with a gluten-related disorder. Thus, the aim of this work was to estimate the prevalence of GRDs and adherence to a GFD by self-report in adult Brazilian population. Materials and Methods: A questionnaire-based cross-sectional study was conducted in two Brazilian cities. Results: The response rate was 93.2% (1630/1749). The self-reported prevalence rates were (95% CI): adverse reactions to gluten 10.06% (8.64–11.62); gluten sensitivity 2.33% (1.65–3.18); physician-diagnosed celiac disease 0.3% (0.09–0.71); non-celiac gluten sensitivity 1.71% (1.14–2.47); wheat allergy 0.79% (0.42–1.36); adherence to gluten-free diet 7.48% (6.25–8.87); gluten avoiders 15.21% (13.5–17.05). Among those who were following a GFD (n = 122), 65.6% (n = 80) of them reported that they did not develop symptoms after wheat/gluten ingestion and 50% (n = 61) were following the diet without medical/dietitian advice. The main motivation for following a GFD in the self-reported and non-self-reported gluten sensitivity groups were the symptoms triggered after wheat/gluten ingestion (86.8%) and weight control (57.1%), respectively. Conclusions: Implementation of programs to increase awareness about GRDs among healthcare professionals and giving scientifically sound information to the general population about the risks and benefits for following a GFD are desirable actions in Brazil. The results also add to the growing body of evidence for highlighting the under-diagnosis of GRD and the trend for following a GFD in Latin America.

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Section: Discussionsupporting

confidence: 86%

Prevalence of Adverse Reactions to Glutenand People Going on a Gluten-Free Diet:A Survey Study Conducted in Brazil

et al. 2020

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“…The absence of a reported peanut allergy is noteworthy, compatible with the information previously published in another Brazilian study [3]. …”

Section: Discussionsupporting

confidence: 78%

“…Table S1; for all online suppl. material, see www.karger.com/doi/10.1159/000453036) was used to collect the data [3]. The FHS mapped 4,916 adults living in the area in 2,325 houses during the study period.…”

Section: Methodsmentioning

confidence: 99%

Adult Food Allergy Prevalence: Reducing Questionnaire Bias

Silva

Ribeiro

et al. 2016

Int Arch Allergy Immunol

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Background: Food allergy (FA) prevalence has increased in the last decades, but epidemiologic studies could show overestimated results. The objective of this study is to estimate the prevalence of immediate FA in adults in a region of Central Brazil, using a questionnaire to try to reduce misperceptions about FA reaction. Methods: A cross-sectional study was conducted, enrolling an adult population aged 18-65 years comprised of families in a Central Brazilian city. In the first phase, participants answered a self-administered questionnaire for FA screening. In the second phase, the participants who reported an FA in the first questionnaire were visited to complete the second questionnaire applied by trained researchers. Results: Of the 4,916 adults visited, 1,583 returned a completed questionnaire. Reported FA occurred in 171 (10.8%) subjects, and the more frequent citations were cow's milk, pork, fruits, shrimp, and vegetables. One hundred and four of these individuals completed the second questionnaire, and 15 (1.0%) were considered to have an FA diagnosis. The main foods were fruits, followed by cow's milk, shrimp, pork, and vegetables. Conclusion: After use of a specific questionnaire to recognize possible IgE-mediated FAs, a low frequency of FA was considered in this population. Use of a directed questionnaire administered by trained researchers could be an alternative for epidemiological IgE-mediated FA studies to achieve more accurate results.

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“…The most commonly declared food allergens in the six Latin American counties surveyed were the eight foods considered for allergen labelling in the Codex Alimentarius guidelines (milk, wheat, soy, egg, nuts, peanuts, fish, and crustaceans) [ 1 ]. These major food allergens declared in the allergen labelling analyzed were reported to be the main triggers of immediate-type food allergy symptoms by the parents of 11,277 Latin American children with different nationalities [ 25 , 26 , 27 , 28 ]. Certainly, as per the opinions of others [ 17 ], the scientific evidence is still insufficient to state that food allergens other than those considered by the Codex Alimentarius guidelines should be added to the food allergen labelling regulations in Latin American countries.…”

Section: Discussionmentioning

confidence: 99%

Characteristics of Allergen Labelling and Precautionary Allergen Labelling in Packaged Food Products Available in Latin America

et al. 2020

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The characteristics of food allergen labelling are relevant for avoiding accidental exposure to the allergens of interest but no Latin American country has evaluated these characteristics. Our aim was to evaluate the characteristics of food allergen labelling and precautionary allergen labelling (PAL) in six Latin American countries. All data were collected directly from the supermarkets surveyed. A total of 10,254 packaged food products were analyzed, of which 63.3% (n = 6494) and 33.2% (n = 3405) featured allergen labelling and/or PAL, respectively. Most products complied with local regulations (≥87.4% for both locally produced and imported). Thirty-three types of PAL statements were detected; the most frequent was “may contain traces of…” (35.1%). Countries without regulations on the characteristics of allergen labelling had two-fold more products that contained allergens in their ingredients lists but no food allergen labelling. The use of PAL in countries that regulate it (38.2%) was as high as that in countries without PAL regulations (19.2%–44.7%). The findings suggest that the lack of regulations for the characteristics of allergen labeling increases the risk of accidental exposure to allergens of interest. Our findings also suggest that beyond regulations, a scientific approach is required for minimizing and standardizing the use of PAL.

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Prevalence of food allergy in infants and pre-schoolers in Brazil

Cited by 39 publications

References 24 publications

Prevalence of Adverse Reactions to Glutenand People Going on a Gluten-Free Diet:A Survey Study Conducted in Brazil

Prevalence of Adverse Reactions to Glutenand People Going on a Gluten-Free Diet:A Survey Study Conducted in Brazil

Adult Food Allergy Prevalence: Reducing Questionnaire Bias

Characteristics of Allergen Labelling and Precautionary Allergen Labelling in Packaged Food Products Available in Latin America

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