a comprehensive model to evaluate implementation of the world health organization framework convention of tobacco control

background: iran is one of the countries that has ratified the world health organization framework convention of tobacco control (who-fctc), and has implemented a series of tobacco control interventions including the comprehensive tobacco control law. enforcement of this legislation and assessment of its outcome requires a dedicated evaluation system. this study aimed to develop a generic model to evaluate the implementation of the comprehensive tobacco control law in iran that was provided based on who-fctc articles. materials and methods: using a grounded theory approach, qualitative data were collected from 265 subjects in individual interviews and focus group discussions with policymakers who designed the legislation, key stakeholders, and members of the target community. in addition, field observations data in supermarkets/shops, restaurants, teahouses and coffee shops were collected. data were analyzed in two stages through conceptual theoretical coding. findings: overall, 617 open codes were extracted from the data into tables; 72 level-3 codes were retained from the level-2 code series. using a model met paradigm, the relationships between the components of each paradigm were depicted graphically. the evaluation model entailed three levels, namely: short-term results, process evaluation and long-term results. conclusions: central concept of the process of evaluation is that enforcing the law influences a variety of internal and environmental factors including legislative changes. these factors will be examined during the process evaluation and context evaluation. the current model can be applicable for providing fctc evaluation tools across other jurisdictions.