Prevalence and factors associated to peanut allergy in Mexican school children

• M. Bedolla-Barajas ^[2] ; F. Valdez-López ^[2] ; G. Alcalá-Padilla ^[2] ; T.I. Bedolla-Pulido ^[3] ; V. Rivera-Mejia ^[4] ; J. Morales-Romero ^[1]
  1. [1] Universidad Veracruzana

     Universidad Veracruzana

     México

     
  2. [2] Hospital Civil de Guadalajara

     Hospital Civil de Guadalajara

     México

     
  3. [3] Universidad de Guadalajara

     Universidad de Guadalajara

     México

     
  4. [4] Centro Universitario de la Cienega, Universisad de Guadalajara, México

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• Localización: Allergologia et immunopathologia: International journal for clinical and investigate allergology and clinical immunology, ISSN-e 1578-1267, ISSN 0301-0546, Vol. 45, Nº. 1, 2017, págs. 69-76
• Idioma: inglés
• Texto completo no disponible (Saber más ...)
• Dialnet Métricas: 2 Citas
• Resumen

  • Background In our country, the prevalence and the factors associated to peanut allergy are unknown, a health problem that has been emerging worldwide.

    Objective To establish the prevalence and the factors that are associated to peanut allergy amongst school children.

    Methods This is a population-based cross-sectional study. We included 756 children aged 6–7 years. The children's parents were questioned about their peanut intake habits. A structured questionnaire was applied, it included questions regarding peanut intake; family and personal history of asthma; rhinitis; and atopic dermatitis. Allergic reactions to peanuts were registered as: probable, convincing and systematic. The statistical analyses included logistical regression models to look for associated factors.

    Results Males were 356/756 (47.1%). Peanut allergy prevalence: probable reaction: 14/756 (1.8%), convincing reaction: 8/756 (1.1%) and systemic reaction: 3/756 (0.4%). Through multivariate analysis, the presence of symptoms of allergic rhinitis (OR = 4.2 95% CI 1.3–13.2) and atopic dermatitis (OR = 5.2; 95% CI 1.4–19.5) during the previous year, showed significant association to probable peanut reaction. The former year, the presence of atopic dermatitis was the only variable that was substantially associated to a convincing reaction (OR = 7.5; 95% CI 1.4–38.4) and to a systematic reaction (OR = 45.1; 95% CI 4.0–510.0), respectively.

    Conclusions The reported prevalence of peanut allergy was consistent with that found in previous studies; symptoms of allergic rhinitis and atopic dermatitis were identified as associated factors to peanut allergy.

    Abbreviations 95% CI, confidence intervals at 95%; OR, odds ratio