Cross-sectional survey of risk factors for asthma in 6-7-year-old children in New Zealand: International Study of Asthma and Allergy in Childhood Phase Three.


Mitchell, EA; Stewart, AW; Clayton, T; Asher, MI; Ellwood, P; Mackay, R; Moyes, C; Pattemore, PK; Pearce, N; (2009) Cross-sectional survey of risk factors for asthma in 6-7-year-old children in New Zealand: International Study of Asthma and Allergy in Childhood Phase Three. Journal of paediatrics and child health. ISSN 1034-4810 DOI: https://doi.org/10.1111/j.1440-1754.2009.01504.x

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Abstract

Aim: To identify risk factors for asthma in primary school-aged children in New Zealand. Methods: A cross-sectional survey of 10 873 6-7-year-old children in Auckland, Bay of Plenty, Nelson and Christchurch (a response rate of 85.2%). A questionnaire was completed by the parent or care giver. Results: 22.2% of children wheezed in the last 12 months (current wheeze). Maori children were at greater risk of current wheeze compared with European children (adjusted odds ratio (adjOR) = 1.37; 95% confidence interval = 1.18-1.59). Antibiotics and paracetamol used in the first year of life were associated with an increased risk of current wheeze (adjOR = 1.78 (1.56-2.04) and adjOR = 1.31 (1.06-1.61), respectively). Watching television for 5 or more hours per day was associated with an increased risk of current wheeze (adjOR = 1.44 (1.13-1.83)). Milk and egg consumption in the last 12 months was associated with a reduced risk of current wheeze. Conclusions: This study has identified risk factors for asthma in children aged 6-7 years, although causal pathways cannot be established. These associations have important public health implications if causal.

Item Type: Article
Faculty and Department: Faculty of Epidemiology and Population Health > Dept of Medical Statistics
Research Centre: Centre for Global Non-Communicable Diseases (NCDs)
PubMed ID: 19490406
Web of Science ID: 267539900011
URI: http://researchonline.lshtm.ac.uk/id/eprint/1538

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