Many researchers report that cigarette smoking by parents adversely affects their children. We carried out a survey about cigarette puffing by distributing questionnaires to mothers of sucklings and little children. The survey found that mothers and family members were not well aware of the health consequences of passive smoking. It was also found that children frequently exposed to smoking are at high risk of contracting infections of the respiratory tract. The average weight at birth was less in babies borned by smoking mothers than by those who do not smoke. Furthermore, it was revealed that a larger number of smoking mothers had given birth to low birth weight infants than nonsmoking mothers had.
These findings suggested that passive cigarette smoking is linked to low birth weight and respiratory tract infection. We think it is incumbent on us, health-care professionals, to bring home to mothers and the rest of the family members how serious the consequences of passive smoking are.

Our survey was conducted at 522 elementary schools and junior high schools in Akita prefecture in July 1981. Thus the survey was intended for 105, 137 elementary school pupils bnd 51, 029 junior high school pupils. Questionnaires were sent to teachers in charge at each school. The return rate of questionnaires wan 98.4 % for elementary school and 100.0 % for junior high school. The rate of bronchial asthma was 1.2 %(boy 1.5 %, girl 0.9 %) in elementary school pupils and 0.6 %(boy 0.8 %, girl 0.5 %) in junior high school pupils. The number of schools where pupils with bronchial asthma were found was 205 elementary schools (56.0 %) and 71 junior high schools (47.0 %). The rate of bronchial asthma in boys was greater than girls, by 1.7 times in case of elementary school and 1.6 times in junior high school. The rate of bronchial asthma in urban children was 1.2 %, while that in rural children was 0.8 %. Out of the children interpreted as bronchial asthma at the time of our survey 82.4 % of the elementary school children and 77.6 % of the junior high school children with bronchial asthma were or had been undergoing apropriate treatment. The rate of children who are absent from school due to asthma more than 10 days a year was 24.4 % in elementary school and 26.7 % in junior high school.