[13]

[16]

[17]

[18]

[19]

[20]

[14]

[15]

1

Did the review address a clearly focused question?

3

1

3

3

1

1

2

2

2

Did the authors look for the right type of papers?

1

1

1

1

1

1

1

1

3

Do you think all the important, relevant studies were included?

1

1

1

1

1

1

1

1

4

Did the review’s authors do enough to assess quality of the included studies?

3

2

1

1

1

1

2

1

5

If the results of the review have been combined, was it reasonable to do so?

1

1

1

1

1

1

1

1

6

How precise are the results?

1

1

2

1

1

1

1

1

7

Can the results be applied to the local population?

1

1

1

1

1

1

1

1

8

Were all important outcomes considered?

1

1

1

1

1

1

1

1

9

Are the benefits worth the harms and costs?

1

1

1

1

1

1

1

1