A questionnaire related to cigarette smoking habits was administerd to 4303 boys and 4172 girls from eleven junior high schools in 1983. 4168 boys and 4081 girls were classified into four groups; Non-smoker, Experimental smoker, Ex-smoker, Current smoker. The results were as follows: 1) 37.8% of boys and 18.1% of girls had experience in smoking. The rate of current smokers, 6.9% for boys and 2.4% for girls, was higher in boys than in girls. 2) Concerning their first motive to smoke, means of getting cigarettes and places to smoke, a significant difference was recognized among the three groups; experimental smoker, ex-smoker, current smoker. Moreover, there were significant differences among pupils who smoked their first cigarette in elementary school and pupils who smoked it in junior high school. 3) About 50% of the ex-smokers had smoked for less than six months. Most of them stopped smoking by themselves. 4) Most of the current smokers consumed more than six cigarettes per day. A large number of current smokers bought the cigarettes and smoked at a friend's house, in private rooms, or out-ofdoors.
