[Behavioral changes in smokers after implementation of anti-smoking legislation in ArgentinaMudança de comportamento nos fumantes após a implementação da legislação antifumo na Argentina].

Objective: Identify factors related to behavioral changes in smokers over 18 years of age following implementation of provincial policies for 100% smoke-free spaces in Argentina.

Methods: A cross-sectional analytical study was conducted. The multilevel technique was used with data from different hierarchies.