Asthma

31 March 2011

Strong link between asthma and smoking

New research suggests that being diagnosed with asthma is significantly associated with a greater risk for a lifetime history of daily smoking and nicotine dependence.

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New research out of the University of Cincinnati suggests that being diagnosed with asthma is significantly associated with a greater risk for a lifetime history of daily smoking and nicotine dependence.

The findings are reported in the Journal of Health Psychology.

The study analysed data from the National Comorbity Survey-Replication (NCS-R) – a large epidemiological survey of American adults.

The study found that individuals who were diagnosed with asthma were 1.26 times more likely to have been a smoker, and twice as likely to have been nicotine dependent at some point in their lifetimes – compared to individuals without asthma. The researchers also found that the asthma-smoking association was stronger when focusing on nicotine dependence in the past 12 months.

"Individuals with asthma were nearly three times as likely as those without asthma to have reported nicotine dependence in the past 12 months, after controlling for demographic and drug abuse/dependence variables,” the authors state in the article.

Tobacco, nicotine tied to asthma

The study also found that roughly half of the smokers with asthma in the survey indicated that they began smoking prior to the age they were diagnosed with asthma. That group reported being diagnosed with asthma at a much later age than those who began smoking after they were diagnosed with asthma.

The article states that a lifetime history of nicotine dependence was not significantly different between those who started smoking prior to (29.3%) or following (25.7%) an asthma diagnosis.

Based on the findings, the researchers suggest paying greater clinical attention to addressing tobacco use and dependence in relation to asthma. - (EurekAlert!, March 2011)

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Professor Keertan Dheda has received of several prestigious awards including the 2014 Oppenheimer Award, and has published over 160 peer-reviewed papers and holds 3 patents related to new TB diagnostic or infection control technologies. He serves on the editorial board of the journals PLoS One, the International Journal of Tuberculosis and Lung Disease, American Journal of Respiratory and Critical Medicine, Lancet Respiratory Diseases and Nature Scientific Reports, amongst others.Read his full biography at the University of Cape Town Lung Institute

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