The Differences of Prevalence and Risk Factors of Asthma in Children with Aged 6-7 Years and 13-14 Years Based on Questionnaire of International Study of Asthma and Allergies in Childhood (ISAAC) in Padang City

Prevalence of asthma increased especially in children in the urban city regarding increasing air pollution, such as Padang city. There were two differences age groups affected by asthma, aged 6-7 years and 13-14 years based on International Study of Asthma and Allergies in Childhood (ISAAC) and performed in 2008 in Padang City. This study aimed to find any increasing asthma prevalence in two age group of children. A cross-sectional study conducting at several elementary schools (6-7 years) and junior high school (13-14 years) in Padang during August-November 2016 by cluster sampling. We used a questionnaire of ISAAC to determine asthma. About 822 subjects were recruited. The asthma prevalence on age 6-7 years and 13-14 years were about 12.97% and 9.5%, respectively. At least one of parents subjects in both age groups have an atopic history only in mother about 11.72% and only in father about 9.73%. The prevalence of asthma in Padang was 11,19%, and atopy is a significant risk factor for developing asthma