Obesity, low levels of physical activity and smoking present opportunities for primary care asthma interventions: an analysis of baseline data from The Asthma Tools Study.

In multivariable modelling, adding in all the factors that were individually associated with out-of-control asthma, only annual family income <$50,000 was significant for children, although obesity showed a trend towards significance ( P =0.06) and for adults family income <$50,000, smoking and obesity remained jointly significant ( Table 3 ).

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