|
1. Was an ‘a priori’ design provided?
|
15.2
|
33.3
|
|
2. Was there duplicate study selection and data extraction?
|
21.2
|
9.1
|
|
3. Was a comprehensive literature search performed?
|
42.4
|
30.3
|
|
4. Was the status of publication (i.e. grey literature) used as an inclusion criterion?
|
24.2
|
48.5
|
|
5. Was a list of studies (included and excluded) provided?
|
3.0
|
15.2
|
|
6. Were the characteristics of the included studies provided?
|
48.5
|
72.7
|
|
7. Was the scientific quality of the included studies assessed and documented?
|
54.5
|
48.5
|
|
8. Was the scientific quality of the included studies used appropriately in formulating conclusions?
|
51.5
|
45.5
|
|
9. Were the methods used to combine the findings of studies appropriate?
|
100
|
81.8
|
|
10. Was the likelihood of publication bias assessed?
|
0.0
|
6.1
|
|
11. Was the conflict of interest included?
|
69.7
|
33.3
|
