RESULTS: Of the 823 children, Male: females was 477 (58%):346 (42%) with mean age 6.9±4.42. Mean age at diagnosis was 2.8 ±2.5 years. Among them, Caucasians 540 (65.6%), African Americans 197 (23.9%), Hispanic 47 (5.7%) and 26 (3.2%) bi-racial with one Caucasian parent. A family history of asthma was reported by 575 (71.4%) patients, including fathers (n=154, 17.8%), mothers (n=235, 26.5%). Smoking exposure or family history of asthma was not significantly different in different ethnic groups. Families with family history of asthma (n=575) were more likely to have a pet at home (n=347, 60.3%) and be exposed to smoking (n=198, 34.4%) compared to families without history of asthma n=124 ( 50%) and n=44 (17.7%) p=0.006 and p<0.001 respectively. Similarly family with exposure to smoking (n=241) were more likely to have a pet at home (n=153, 63.5%) and a family history of asthma (n=197, 81.7%) compared to families with no exposure to smoking (n=315, 55.5%, p=0.034 and n=371, 65.3%, p<0.001 respectively).