[Knowledge of Community Health Workers on the SIAB's instruments for data collection].

This study aimed to identify the Community Health Agents' knowledge about the instruments/forms of the Primary Care Information System. This is an exploratory and descriptive study, with qualitative approach, carried out with Community Health Agents of two Family Health Care Units, using semi-structured interviews and participant observation for data collection. The thematic analysis was used to analyze empirical material. Three categories emerged: 1) recognition of each instrument of the Primary Care Information System for data collection; 2) filling in the forms: difficulties and doubts; 3) resolution of difficulties and doubts. The study enabled the identification of problem situations faced by the Community Health Agents in working with the forms of the the Primary Care Information System that require actions of the managers of SUS, such as continuing education for professionals and the improvement of the structure of the forms / reports, adapting them to the local reality of the Family Health Units, by adding or removing data.