Risk factors of asthma among children aged 0 - 14 in Suzhou city / 中华预防医学杂志

ABSTRACT

<p><b>OBJECTIVE</b>This study aimed to investigate risk influencing factors of asthma for children in Suzhou City, China.</p><p><b>METHODS</b>A survey of asthma was conducted on children aged 0 - 14 with or without asthma from September 2010 to April 2011 in Pingjiang district of Suzhou city. A total of 271 children diagnosed with asthma were considered as a case group, and 271 non-asthmatic children with the same age, sex and living region formed the control group. Risk factors were analyzed with χ(2) test and logistic regression analysis.</p><p><b>RESULTS</b>All children were Han. The case group was composed of 165 boys and 106 girls, so was the case group. The average age was (7.5 ± 2.3) years for the case group and (7.8 ± 2.9) years for the control group, which did not showed any significant difference (P > 0.05). Family history of allergy (OR = 10.624, 95%CI 6.294 - 18.623), history of children's eczema (OR = 4.403, 95%CI 8.627 - 29.632), history of allergic rhinitis (OR = 6.871, 95%CI 7.658 - 31.871), passive smoking when baby was born (OR = 3.323, 95%CI 3.541 - 11.634), mold contamination (OR = 1.837, 95%CI 1.531 - 4.926) were the risk factors, and breast-feeding (OR = 0.513, 95%CI 0.418 - 0.914) was the protective factor.</p><p><b>CONCLUSION</b>Family history of allergy, history of children's eczema, history of allergic rhinitis, passive smoking, and old contamination are the risk factors, and breast-feeding is the protective factor.</p>