... different susceptibility to asthma, which indicated that genetic factors may play an important role in the pathogenesis of asthma Regulated upon activation, normal T- cell expressed and secreted (RANTES), ... -28C/G polymorphisms, stratified by asthma type, age and ethnicity Stratified variable asthma type atopic non-atopic age children adult ethnicity Asian Caucasian African Studies of available$ ... (atopic asthma and non-atopic asthma) , age (children and adult) and ethnicity (Asian and Caucasian and African ethnicity), and the estimate results were presented in Table As shown in the table,...