Background: International anti-nicotine campaigns have been found to be efficient and economically effective methods of reducing tobacco addiction on a social scale. Nevertheless innovative methods are being looked for in order to increase the efficiency of antinicotine interventions. The aim of the research was to evaluate a long-term efficiency of two programs of additional anti-nicotine intervention introduced after the 2nd International Antinicotine Campaign conducted in Poland (1996) in two randomly chosen groups of people from among the participants of the ‘Quit and Win' competition held in 1996. Materials and methods: The two programs of additional intervention differed in their substance and economic terms. For 10 years (June 1996-August 2006), the efficiency of the programs had been systematically evaluated. The study was carried out in two experimental groups, one comprised 222 and the other 242 participants of the 1996 competition, and the control group consisting of 224 participants of the same competition. Results: In the first experimental group, 53 (23.9%) persons responding to the questions concerning tobacco smoking between January and July, 2006 reported that they had not smoked a single cigarette, and in the second experimental group, 72 (29.8%) persons reported complete abstinence from smoking in that period In the control group, 53 respondents (23.7%) stated that they had not smoked at all in the aforesaid period of time. Conclusions: One of the used programs of the additional anti-nicotine intervention, which proved to be less expensive contributed to achieving a far better long-term results of the campaign. Med Pr 2009;60(1):21-25