The epidemic factors of asthma included: the prevalence of asthma in rural was higher than in urban (5.1% / 4.6%); family history with asthma: (18.6%), allergic rhinitis: (21.6%), sinusitis: (18.6%), urticaria: (10.2%), and eczema: (1.2%), indoor factors: tobacco smoke: (77.8%), materials cooker indoor: gas: (73.6%), coal: (44.9%); indoor habits with spray: (76.6%); cats and dogs in the house: (60.5%).