“…The characteristics of the 13 studies included in the review are shown in Table 1. Seven studies were carried out in the southern region, with three studies in the state of Paraná 20,29,31 , two studies in Santa Catarina 19,22 and two studies in Rio Grande do Sul 26,30 . Four studies 23,25,27,28 were carried out in the northeastern region (Piauí, Bahia, Ceará and Paraíba, respectively), one study 21 was carried out in the northern region (Amazonas) and one study 24 was carried out considering all regions of the country (Northern, Northeastern, Midwestern, Southeastern and Southern).…”