Analyzing the reach of public health campaigns based on multidimensional aspects: the case of the syphilis epidemic in Brazil.

Background: Public health campaigns aim to promote awareness, increase knowledge, and encourage a target population to adopt desirable attitudes and behaviors. Assessing their reach from a multidimensional perspective through information technology can facilitate the development of more effective campaigns in public health response.

Methods: We scrutinized seven data sources from different perspectives to assess a health campaign launched in Brazil named "Syphilis No!".