Fig 1.
PRISMA flowchart of the literature research by database.
SLR, Systematic Literature Review; MA, Meta Analysis.
Table 1.
Characteristics of the included studies (n = 31).
Table 2.
Summary of the results of the included reviews on preschool children: The importance of a determinant and its strength of evidence.
Table 3.
Summary of the results of the included reviews on children and adolescents: The importance of a determinant and its strength of evidence.
Table 4.
Summary of the results of the included reviews on adults: The importance of a determinant and its strength of evidence.
Table 5.
Quality assessment of the included systematic literature reviews using the AMSTAR checklist.