<![CDATA[Smoking behavior among students remains a significant social and public health issue in Indonesia, including in the South Denpasar District. Students’ decisions to consume cigarettes are influenced by various economic, social, and knowledge-related factors. This study aims to analyze the simultaneous and partial effects of peer effect, income, and level of knowledge on cigarette consumption decisions among male senior high school/vocational high school students in South Denpasar District. This study employed a quantitative approach using binary logistic regression analysis. The data used were primary data collected through questionnaires distributed to male senior high school/vocational high school students in South Denpasar District, with a total sample of 100 respondents. Based on the results of the binary logistic regression analysis, it was found that simultaneously the variables of peer effect, income, and level of knowledge had a significant effect on cigarette consumption decisions among male senior high school/vocational high school students in South Denpasar District. Partially, the peer effect variable showed that the stronger the influence of smoking peers, the higher the likelihood that students would decide to consume cigarettes. The income variable had a positive and significant effect on cigarette consumption decisions, meaning that the higher the students’ allowance or income, the greater the probability that students would decide to consume cigarettes. Meanwhile, the level of knowledge variable indicated that the higher the students’ knowledge regarding the dangers of smoking, the lower the likelihood that students would decide to smoke. The findings of this study indicate that students’ cigarette consumption decisions are influenced not only by economic capability, but also by the social environment and individual level of knowledge. Therefore, efforts to control cigarette consumption decisions among students should be carried out through increasing education regarding the dangers of smoking, monitoring adolescent social environments, and supervising students’ use of allowance money so that cigarette consumption decisions at school age can be minimized..]]>
