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- Title
Nut allergy prevalence and differences between Asian-born children and Australian-born children of Asian descent: a state-wide survey of children at primary school entry in Victoria, Australia.
- Authors
Panjari, M.; Koplin, J. J.; Dharmage, S. C.; Peters, R. L.; Gurrin, L. C.; Sawyer, S. M.; McWilliam, V.; Eckert, J. K.; Vicendese, D.; Erbas, B.; Matheson, M. C.; Tang, M. L. K.; Douglass, J.; Ponsonby, A.‐L.; Dwyer, T.; Goldfeld, S.; Allen, K. J.
- Abstract
Background Asian infants born in Australia are three times more likely to develop nut allergy than non-Asian infants, and rates of challenge-proven food allergy in infants have been found to be unexpectedly high in metropolitan Melbourne. To further investigate the risk factors for nut allergy, we assessed the whole-of-state prevalence distribution of parent-reported nut allergy in 5-year-old children entering school. Methods Using the 2010 School Entrant Health Questionnaire administered to all 5-year-old children in Victoria, Australia, we assessed the prevalence of parent-reported nut allergy (tree nut and peanut) and whether this was altered by region of residence, socio-economic status, country of birth or history of migration. Prevalence was calculated as observed proportion with 95% confidence intervals ( CI). Risk factors were evaluated using multivariable logistic regression and adjusted for appropriate confounders. Results Parent-reported nut allergy prevalence was 3.1% (95% CI 2.9-3.2) amongst a cohort of nearly 60 000 children. It was more common amongst children of mothers with higher education and socio-economic index and less prevalent amongst children in regional Victoria than in Melbourne. While children born in Australia to Asian-born mothers ( aOR 2.67, 95% CI 2.28-3.27) were more likely to have nut allergy than non-Asian children, children born in Asia who subsequently migrated to Australia were at decreased risk of nut allergy ( aOR 0.1, 95% CI 0.03-0.31). Conclusion Migration from Asia after the early infant period appears protective for the development of nut allergy. Additionally, rural regions have lower rates of nut allergy than urban areas.
- Subjects
NUT allergy; FOOD allergy in infants; DISEASE prevalence; ASIAN children; SOCIOECONOMIC factors; LOGISTIC regression analysis
- Publication
Clinical & Experimental Allergy, 2016, Vol 46, Issue 4, p602
- ISSN
0954-7894
- Publication type
Article
- DOI
10.1111/cea.12699