Figure 1
The flowchart begins from the left column; the process begins with “Database Service Ebsco Host (n equals 2,366,051)”. A rightward arrow leads to a box labeled “Studies Excluded (n equals 2,365,432)” with the following breakdown: “Non-Peer Reviewed (n equals 1,424,258)”, “Not in English Language (n equals 32,076)”, “Non Academic Journals (n equals 34,966)”, and “A B S Journals less than 3 (n equals 874,132)”. A downward arrow from the database box leads to “Studies Screened (Title and Abstract Review) (n equals 619)”. From this box, a rightward arrow leads to “Studies excluded Irrelevant (n equals 466)”. A downward arrow continues to “Studies Screened (Full Text Review) (n equals 153)”, followed by a rightward arrow to “Studies Excluded Irrelevant (n equals 129)”. A downward arrow then leads to “Studies Included (n equals 24)”. In the right column, the process begins with “Database Service SCOPUS (n equals 1,723,678)”. A rightward arrow leads to “Studies Excluded (n equals 1,721,163)” with the breakdown: “Non-Peer Reviewed (n equals 0)”, “Not in English Language (n equals 87,044)”, “Non Academic Journals (n equals 499,585)”, and “A B S Journals less than 3 (n equals 1,134,534)”. A downward arrow from the database box leads to “Studies Screened (Title and Abstract Review) (n equals 2,515)”. From this box, a rightward arrow leads to “Studies excluded Irrelevant (n equals 2,472)”. A downward arrow continues to “Studies Screened (Full Text Review) (n equals 43)”, followed by a rightward arrow to “Studies Excluded Irrelevant (n equals 18)”. A downward arrow then leads to “Studies Included (n equals 25)”. At the bottom, arrows from both columns converge into a final box labeled “Studies Included (n equals 49)”, representing the total number of studies included after combining results from both databases.Flow diagram. Source: Authors’ own elaboration