Figure 1
The flowchart illustrates the process of selecting studies for review. The process begins with identifying records from databases, resulting in 457 records. Duplicate records are removed, resulting in 291 unique records. These records are then screened based on abstract and title, excluding 190 records. The remaining 101 full texts are assessed for eligibility, with 89 full texts excluded for various reasons. Finally, 12 studies are included in the review.Diagram of the selection process. Source: Author’s own work