Figure 1
The flowchart divided into two main sections labeled “Identification of works through databases and registers” on the left and “Identification of other studies through other methods” on the right. Along the far left side, three vertical labels appear from top to bottom: “Identification”, “Projections”, and “Included”. In “Identification” and under the section “Identification of works through databases and registers”, a rectangle reads “Identified records: Database (n equals 1) Records (n equals 465)”. A rightward arrow from this rectangle leads to another rectangle labeled “Records deleted before screening: exclusion criteria. (n equals 410)”. A downward arrow from the first rectangle leads to the “Projections” stage. In the “Projections” stage, a rectangle is labeled “Records reviewed. (n equals 55)”. A rightward arrow from “Records reviewed. (n equals 55)” leads to a rectangle labeled “Records deleted before screening: retracted. (n equals 0) Records excluded due to non-coincidence of the subject matter analysed or not relevant contribution (n equals 19)”. A downward arrow from “Records reviewed. (n equals 55)” leads to another rectangle labeled “Reports assessed for eligibility. (n equals 36)”. A downward arrow from this rectangle leads to the final “Included” stage. In the “Included” stage, the final rectangle is labeled “Studies included in review. (n equals 43)”. On the right side, under the section “Identification of other studies through other methods”, a rectangle reads “Records identified from: Previous studies selected by authors (n equals 7)”. A long downward arrow extends from this rectangle and then turns leftward, pointing to the final rectangle labeled “Studies included in review. (n equals 43)”.Exclusion criteria and protocols used in the analysis. Source: Authors’ elaboration based on the Prima 2020 declaration