Abstract
Background:Over the past 10 yrs (2002-2012 yrs) in Novosibirsk there are no data about the epidemiology and risk factors of asthma in children aged 6-7 yrs.
Aim: To study trends of asthma in Novosibirsk children aged 6-7 yrs.
Methods: To explore time trends of epidemiology according to the ISAAC methodology by written questionnaire it was examined 3251 parents of children aged 6-7 yrs in 2002 and 3270 parents in 2012. Compared groups were matched for age and sex of children.
Results: The prevalence of lifetime wheeze was decresed by 0,58% per year (from 24,0% in 2002 to 18,2% in 2002; p<0,001). The prevalence of current wheeze in the last 12 months was changed by 0,41% per year (from 10,8% to 6,7%; p<0,001). However, the percentage of children reported to have had asthma at some time in their lives was increased by 0,17% per year (from 2,5% to 4,2%; p<0,001). We studied also all asthma risk factors included ISAAC Phase Two questionnaire. There were marked some significant variations. For example, there was obtained decreased of passive smoking but one in four children with asthma still continues to be affected by smoke in the home. It was shown that the presence of passive smoking and poor housing conditions (moisture damage, stove heating) due to the first year of life occurred more frequently among children with moderate asthma in comparison with the mild asthma. In addition it was noted that among children with moderate asthma the amount of daily parents smoked cigarettes was significantly higher.
Conclusions: There were noted positive epidemiological changes over the last 10 yrs among children aged 6-7 yrs. This study has confirmed the importance of passive smoking and poor housing conditions in case of moderate asthma.
- © 2014 ERS