Figure 1.
The PRISMA flowchart has four stages: identification, screening, eligibility and included. Identification begins with 593 records identified through database searches. All 593 records proceed to screening. During screening, 525 records are excluded as irrelevant through title, keywords and abstract screening, or removed as duplicates and non-English items. Detailed inclusion and exclusion criteria are referenced in Section 2.2. This leaves 68 full-text articles assessed for eligibility. Of these, 32 full-text articles are excluded according to the detailed inclusion and exclusion criteria in Section 2.2. A further 9 records are excluded because they are not peer-reviewed. The process ends with 27 studies included in qualitative synthesis.Systematic review methodology guided by PRISMA
Source: Authors’ own work