data from the child health supplement to the 1981 national health interview survey were analyzed with information about 4331 children aged 0 to 5 years to study the relationship between maternal smoking and ( 1 ) the prevalence of childhood asthma , ( 1 ) the likelihood of taking asthma medication , ( 3 ) the age of onset of children 's asthma , and ( 4 ) the number of hospitalizations among children with and without asthma .
C1513894
national health interview survey
C0001779
aged