This approach provided an understanding of the complex relationships between the various stakeholders in their respective contexts and served to document the level of and variations in the implementation of the PRÉVICAP program in the four pilot regions. [...] The interviewers had one day of training on the survey objectives, the content of the questionnaires and filters, the procedures to follow in the event of a refusal to participate or failure to return the consent forms, and ways of preventing bias when administering the questionnaires. [...] In the first telephone conversation, the workers were explained the nature of the study and the implications of their involvement. [...] The CSST data contained the following information: the workers’ sociodemographic characteristics, a description of the events, information on the workers’ trajectory and the services they received from the CSST, the amounts paid out by the CSST in compensation benefits, the amounts of and periods during which indemnities were paid to the workers by the CSST, information on any contestations, i.e. [...] After discussion with the CSST and preliminary analyses, we retained the following: RTW to pre-injury job (three indicators): The return to the pre-injury job was measured in terms of the time elapsed between the date of the event and the first return to work for at least three days (a), at least four weeks (b), or at least six months (c), and involving a return to the pre-injury job at the same e