PURPOSE
To investigate the prevalence of smoking behavior among elementary students which may serve as basic data for developing a smoking prevention program.
METHOD
Questionnaires were given to 734 fourth, fifth, and sixth graders in five elementary schools in U county, North Chungcheong Province. Data were collected from 8 to 20 December, 2003; and analyzed using SPSS/PC for descriptive and chi-square statistics.
RESULTS
Of these students, 19.9% reported that they had smoked and 0.8% answered they are current smokers. They reported that the first smoking started during third grade (26.0%), at their homes (38.4%), and out of curiosity (74.0%). They reported severe coughing when they first smoked (56.2%). Smoking experiences were significantly related to grade, gender, and academic performance. Similarly, environmental characteristics such as residential area, parental status, father's job, parental attention, home atmosphere, and smoking siblings or friends were significantly related to smoking behavior. Among non-smokers, 86.4% intended not to smoke and 1.4% would like to smoke in the future.
CONCLUSION
Certain school and environmental characteristics were associated with smoking experimentation. Therefore teachers and parents should use this information to develop and guide smoking prevention programs.

PURPOSE
The purpose of this study was to investigate the status of internet addiction, internet expectancy, and self-efficacy in elementary school students.
METHOD
The study was carried out during the period from June 16 to July 12, 2003. The subjects in the study were 397 elementary students attending four elementary schools in Chungcheongbuk-do and Kyunggi-do. Self-rating questionnaire included general characteristics, internet addiction scale, internet expectancy scale, and self-efficacy scale. Data was analyzed using SPSS/WIN10.0 by unpaired t-test and Pearson corelation coefficient.
RESULT
In this study, the mean score of internet addiction was 20.7. Internet dangerous group was 12.6% and internet addicticted group was 0.3%. The score of internet addiction was significantly different according to parents' concern, aversion to school life and extracurricular lecture. The mean score of internet expectancy was 27.1. The score of Internet expectancy was significantly different according to popularity among friends and easiness of making friends. The mean score of self-efficacy was 55.8. The score of self-efficacy was significantly different according to conversation with parents, enforcement of parents on learning, aversion to school life, aversion to extracurricular lecture, existence of intimate friend, popularity among friends(p=.000), and easiness of making friends.
CONCLUSION
This study showed that prevalence of internet addiction was much lower than expected, but the score of internet addiction and internet expectancy can be different according to parents' concern and relationship with friends.Therefore parents must be concerned about their children and their school lives to prevent internet addiction.