Regional variations in risk factors for asthma in school children: DISCUSSION (1)

The results of our study confirm previously identified associations between personal characteristics and asthma, and also highlight the need to interpret associations between asthma and indoor environmental characteristics at a local level. In the present study, respiratory allergy was most strongly associated with asthma. Similarly, strong associations between allergy and asthma have been seen in other studies. Our study also supports previous studies showing that having at least one parent with asthma increases a child’s risk of developing asthma. Whereas other studies report inconsistent associations between early respiratory illnesses and asthma, our findings of an association were consistent between communities.
We found that despite being in a similar geographical setting, the two study communities differed in their association between environmental characteristics and asthma — buy asthma inhalers. Although there was an increased risk of asthma associated with previous ETS exposure from the mother in both communities, associations between current ETS exposure from the mother and asthma differed between communities, with no association in Swift Current and an inverse association in Estevan.

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