Table 1:
Sample data representation.
Study quality
Study method (number of studies)
Qualitative (21)
Quantitative (74)
Mixed (12)
High scientific quality
15 (71%)
29 (39%)
4 (33%)
Good scientific quality
4 (19%)
17 (23%)
2 (17%)
Fair scientific quality
2 (10%)
28 (38%)
6 (50%)