Figure 1.
The search strategy and flow diagram for database search of systematic reviews and meta-analyses included in groups A and B, published in 9 GH journals endorsing PRISMA in the Instructions to Authors.
Figure 2.
The search strategy and flow diagram of systematic reviews and meta-analyses included in Group C, published in 9 GH journal endorsing PRISMA in the year preceding PRISMA endorsement.
Figure 3.
The search strategy and flow diagram for database search of systematic reviews and meta-analyses included in Group D, published in top 10 GH journals that never endorsed PRISMA.
Table 1.
Evaluation of the adherence to PRISMA checklist of 90 systematic reviews and meta-analyses.
Table 2.
A quality assessment of the 90 systematic reviews and meta-analyses using the AMSTAR checklist.
Table 3.
Characteristics of 90 systematic reviews and meta-analyses evaluated.