Figure 1
The flowchart is divided into four vertical phases along the left side labeled “Identification”, “Screening”, “Eligibility”, and “Included”. Under “Identification”, a box reads: “Initial database search result 1641 records” with sources listed below: “Scopus: 828, Web of Science: 476, PubMed: 317, The Cochrane Library: 20”. A right-pointing arrow leads to a box labeled “Duplicate records removed (n equals 640)”. Under “Screening”, a downward arrow leads to a box labeled “Screened for eligibility (abstracts): 1001 records”. A right arrow points to a box labeled “Records excluded (first round: n equals 738) (second round: n equals 110)”. A downward arrow from “Screened for eligibility (abstracts): 1001 records” leads to a box labeled “Sought for retrieval: 153 records”. A right arrow points to “Records not retrieved (n equals 3)”. Under “Eligibility”, a downward arrow leads to a box labeled “Assessed for eligibility 150 articles”. A right arrow points to a box labeled: “Articles excluded (n equals 70): No healthcare delivery described (n equals 31), Network not a key concept (n equals 19), Wrong type of network (n equals 12), Foreign language (n equals 4), Study protocol (n equals 2), and Wrong publication type (n equals 2)” Under “Included”, a downward arrow leads to the final box labeled “Included in full review 80 articles”.PRISMA flowchart