“…Table 5 shows a descriptive analysis of the percentage of methodological tools used in the investigation of research on occupational mental health. The result showed a bigger emphasis on the use of interviews, 14 , 18 , 23 , 25 - 27 all of which were semi-structured, with 42.9% (n = 6) of the studies, and document analysis of directives, legislation, medical records, and social security data, 16 , 17 , 19 , 20 , 21 , 24 with 35.7% of the studies (n = 5). The least frequently used methods were participant observation and focus group, 15 both in 7.1 % (n = 1).…”