“…Regarding the region of the research, the studies were concentrated in the South (40%), totaling six studies 11,14,15,18,19,20 ,of which 66.6% were performed in Pelotas 14,15,18,19 and Southeast (40%) also with six studies 9,12,13,16,17,21 , highlighting the studies carried out in São Paulo 9,12,16,17 . The Northeast region contributed with two studies 7,8 (13.3%) and there was a study that considered Brazil as a analysis unit 23 , corresponding to 6.6%.…”