PURPOSE
This study was designed to identify the factors affecting the experience of smoking in middle school girls. A comprehensive analysis of individual and family factors was used.
METHOD
The students in this descriptive survey on causal relations were 433 girls enrolled in middle schools selected by convenience sampling. The data were collected in November-December 2003 and logistic regression analysis was used to build a forecast model. FINDINGS: The findings showed the following, 1) Individual factors such as grade, alcohol consumption, sexual experience and the frequency of exposure to pornographic materials, and 2) family factors such as parental living arrangement were significant factors.
CONCLUSION
AND RECOMMENDATION: The experience of smoking among Korean middle school girls was associated not only with individual factors, but also with family factors, which exert a strong influence on health behavior. There is therefore a need for school-based smoking prevention programs, which deal comprehensively with these factors that influence smoking. It is recommended that a program be developed that will help to control the variables identified in this study along with follow-up study to verify the model.

PURPOSE
This study was done to identify the level of Internet addiction among adolescents, and to examine factors affecting Internet addiction in adolescents.
METHOD
The participants in were 475 high school students. Data were analyzed using multiple regression analysis to examine the factors affecting Internet addiction in adolescents.
RESULT
The overall Internet addiction scale score was 63.83(+/-20.48). The differences of Internet addiction according to student characteristics were found to be significant for sex and grade. The level of Internet addiction was positively related to the level of impulsiveness and depression. The level of Internet addiction was negatively related to the level of social support. Factors such as impulsiveness and social support were examined as significant factors predicting Internet addiction in adolescents.
CONCLUSION
Based upon these findings, factors affecting Internet addiction in adolescents include impulsiveness and social support. The findings provide further justification for interventions targeting key factors that influence Internet addiction in adolescents in addition to providing adolescents with necessary communication, negotiation and other life skills.

This study is attempted to define risk factor of youth runaway impulse and to structure forecast model through an extensive analysis of the factors influencing the runaway impulse of youth. The subjects were 610 high school students in Seoul and Kyunggido. The collected data was analysed by SAS. The differences between the runaway impulse group and the non-runaway impulse group were subject to chi-square and t-test. Also logistic regression analysis was conducted on the basis of purposeful selection method for constructing the forecast model. The findings are as follows : the major predicting factors of youth runaway impulse are sex(odds ratio=1.886, p=.009), existence of friends of the opposit sex(odds ratio=2.011, p=.007), anti-social personality(odds ratio= 4.953, p=.000), depressive trend(odds ratio= 2.695, p=.000), family structure(odds ratio= 5.381, p=.000), marital relationship(odds ratio =1.893, p=.009) and also between parents and youth(odds ratio=3.877, p=.000), emotional abuse(odds ratio=1.963, p=.003), authoritative controlled rearing(odds ratio=2.135, p=.005) and stress from school(odds ratio=1.924, p=.008). Therefore, the forecast model will be contribute to the nursing intervention for prevention of runaway youth.