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Respirology. 2012 Feb;17(2):363-9. doi: 10.1111/j.1440-1843.2011.02115.x.

Association between soft drink consumption and asthma and chronic obstructive pulmonary disease among adults in Australia.

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Discipline of Medicine, University of Adelaide, Adelaide, South Australia, Australia.



The aim of this study was to examine the association between soft drink consumption and self-reported doctor-diagnosed asthma and COPD among adults living in South Australia.


Data were collected using a risk factor surveillance system. Each month a representative random sample of South Australians were selected from the electronic White Pages and interviews were conducted using computer-assisted telephone interviewing (CATI).


Among 16 907 participants aged 16 years and older, 11.4% reported daily soft drink consumption of more than half a litre. High levels of soft drink consumption were positively associated with asthma and COPD. Overall, 13.3% of participants with asthma and 15.6% of those with COPD reported consuming more than half a litre of soft drink per day. By multivariate analysis, after adjusting for socio-demographic and lifestyle factors, the odds ratio (OR) for asthma was 1.26 (95% confidence interval (CI): 1.01-1.58) and the OR for COPD was 1.79 (95% CI: 1.32-2.43), comparing those who consumed more than half a litre of soft drink per day with those who did not consume soft drinks.


There was a positive association between consumption of soft drinks and asthma/COPD among adults living in South Australia.

[Indexed for MEDLINE]

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