Background: Tobacco is a global problem, in which at least 5 million people die from diseases caused by the consumption of tobacco products such as cigarettes each year, such as cervical cancer, heart disease, gastric ulcers, tuberculosis, kidney failure, pancreas, leukemia, pneumonia, gum and mouth disease as well as lung cancer. This study aims to estimate the magnitude of the effect of School based intervention on cigarette consumption based on the results of a number of previous studies. Subjects and Method: This research is a systematic study and meta-analysis, with PICO as follows Population = junior high school and high school students, Intervention = School based intervention. Comparison = No School based intervention. Outcome = cigarette consumption. The articles used in this study were obtained from several databases including PubMed, ScienceDirect and Google Scholar. This article article was collected for 2 months. The keywords for searching articles are as follows: "Schoolbased intervention" AND tobacco OR smoke OR cigarette AND RCT OR "Randomized Controlled Trial". The articles included in this study are full text articles with a randomized controlled trial study design. Articles were collected using PRISMA flow diagrams. They were analyzed using the Review Manager 5.3 application. Results: A total of 11 articles reviewed in this meta-analysis study originated from the

Background: Teenage marriage have historically been associated with a variety of negative outcomes such as lower education levels, higher unemployment rates, worse health, lower wages and higher crime rates. Studies have revealed significant differences in most of the dimensions of marital quality, before and after marital counselling. The purpose of this study was to investigate evaluation of information and adolescent counseling center management to delay early marriage in adolescents. Subjects and Method: This was a qualitative study with a case study approach. The study was conducted at Public Senior High School 4 Jambi, Indonesia, from January to May 2019. 10 key informants were selected for this study. The data were collected by indepth interview and observation. The data were analyzed using source, data, and method triangulations. Results: The implementation of adolescent’s guidance and counseling center services still has room for improvement. There were several factors that lack of optimal results, for example the process of members or educators recruitment and training (input aspects), planning, report and evaluation system (process aspect) and students’ knowledge about health reproduction and adolescent marriage (output aspect). Conclusion: There is a need to improve information and counseling service. Keywords: evaluation, counseling and information center service, adolescents, delayed early marriage Correspondence: Muhammad Rifqi Azhary. Masters Program in Public Health, Universitas Sebelas Maret. Jl. Ir. Sutami 36A, Surakarta 57126, Central Java. Email: rifqiazhary.ra@gmail.com. Mobile: +6285363817339. DOI: https://doi.org/10.26911/the7thicph.04.51