TABLE 2. Strengths and weaknesses of the included systematic reviews, according to the criteria of the AMSTAR2 tool.
|
Criteria |
Answers (%)a |
|||
|---|---|---|---|---|
|
Yes |
Partial yes |
No |
No meta-analysis |
|
|
Presence of components of PICO |
84.8 |
0 |
15.2 |
NA |
|
Written protocol* |
3.0 |
57.6 |
39.4 |
NA |
|
Justification of the inclusion of the study designs |
15.2 |
0 |
84.8 |
NA |
|
Comprehensive literature search strategy* |
6.1 |
45.5 |
48.8 |
NA |
|
Study selection in duplicate |
75.8 |
0 |
24.2 |
NA |
|
Data extraction in duplicate |
57.6 |
0 |
42.4 |
NA |
|
List of excluded studies* |
15.2 |
6.1 |
78.8 |
NA |
|
Adequate description of the included studies |
27.3 |
21.2 |
51.5 |
NA |
|
Satisfactory technique for assessing the risk of bias* |
30.3 |
6.1 |
63.6 |
NA |
|
Report on the sources of funding for the studies included |
3.0 |
0 |
97.0 |
NA |
|
Use of appropriate methods for statistical combination of results* |
27.3 |
0 |
33.3 |
39.4 |
|
Assess the impact of risk of bias |
18.2 |
0 |
42.4 |
39.4 |
|
Account for risk of bias when interpreting/discussing* |
36.4 |
0 |
63.6 |
NA |
|
Explanation for any heterogeneity |
45.5 |
0 |
54.5 |
NA |
|
Investigation of publication bias and discussion* |
24.2 |
0 |
36.4 |
39.4 |
|
Report sources of conflict of interest |
90.9 |
0 |
9.1 |
NA |
Notes:
“Answers (%)” represents the percentage of SRs with a specific answer.
Asterisk indicates critical items.
PICO, Population, Intervention, Control, and Outcome; NA, not applicable.
Source: Prepared by the authors based on the results of the evidence map.