THE RELATIONSHIP BETWEEN THE ONSET OF PARENTS WITH ALLERGIC DISEASES AND BRONCHIAL ASTHMA OF THEIR CHILDREN

247 asthmatic and 246 non-asthmatic children were evaluated in order to find out the relationship between the onset of their bronchial asthma and allergic diseases of their parents.The results of relative risk were as follows.(1) Relative risk was 6.55 when father has allergic diseases. Relative risk was 3.44 when mother has allergic diseases.(2) Relative risk was 30.44 when father has bronchial asthma. Relative risk was 9.78 when mother has bronchial asthma.(3) Relative risk was 14.27 when the onset of parents with allergic diseases in their childhood. Relative risk was 5.23 when the onset of parents with allergic diseases in their adulthood.(4) Relative risk was 11.42 when the onset of father with allergic diseases in his childhood. Relative risk was 5.23 when the onset of mother with allergic diseases in her childhood.(5) Relative risk was 39.95 when the onset of father with bronchial asthma in his childhood.These results suggest that parents, especially father's child-onset bronchial asthma were closely related to their children's bronchial asthma.We concluded that information about the onset of parents' allergic diseases could help us to predict the development of bronchial asthma in their children.