Table 4.
The number of included studies per question resulting from different literature searches
| Question number | Studies included in source guideline | SR search | Screening of SR for primary studiesa | Primary study search |
|---|---|---|---|---|
| Question 1 | – | 1 | 2 | 1 |
| Question 2 | 3 | 0 | – | 0 |
| Question 3 | 4 | 0 | – | 0 |
| Question 4 | 7 | 1 | 2 | 3 |
| Question 5 | 0 | 0 | – | 2 |
| Question 6 | 1 | 0 | – | 1 |
| Question 7 | 1 | 0 | – | 0 |
| Question 8 | 1 | 0 | – | 0 |
SR systematic review
aPrimary studies included in the identified systematic review and not included in the source guideline search