Methods: We used the data of the 2014 Korea Youth Risk Behavior Web-Based Survey that 72,060 Korean middle and high school students participated in. Dependent variables were asthma, allergic rhinitis (AR) and atopic dermatitis (AD) diagnosed within 1 year, and its treatment within last 1 year. Independent variables were current cigarette smoking, passive smoking, current drinking and dangerous level of drinking. Multivariate analysis was done to investigate the relationship between smoking, drinking and allergic diseases.
Results: The prevalence of current smoking was 14.0% in male, 4.0% in female and 9.2% in total. Passive smoking was 32.8% in male, 34.9% in female and 33.8% in total. Current drinking and dangerous level of drinking were 16.7%, 7.9% in total, respectively. Current smoking was a risk factor of asthma (OR=1.420, P=0.000). Passive smoking was a risk factor in asthma (OR=1.256, P=0.000), asthma treatment (OR=1.248, P=0.000), AR (OR=1.051, P=0.014), AD and its treatment (OR=1.127, P=0.000; OR=1.128, P=0.000). Current drinking was related to AD (OR=1.182 P=0.003) and dangerous level of drinking wasn’t a risk factor.
Conclusions: Smoking was a significant risk factor of allergic diseases than drinking. The rate of passive smoking was higher than current smoking and was revealed a risk factor of allergic diseases’ development. Prevention strategy primarily for passive smoking should be implemented to prevent allergic diseases in Korean adolescents.