Table 2.

Quality assessment of the qualitative studies, using the Critical Appraisal Skills Programme (CASP) tool

	Study
Criteria	Mann et al. (2014) [31]	Paramasivan et al. (2011) [32]
Global quality rating	Strong	Strong
Clear aims?	✓	✓
Qualitative methodology appropriate?	✓	✓
Research design appropriate to address aims?	✓	✓
Appropriate recruitment strategy?	✓	✓
Data collection appropriate?	✓	✓
Relationship between researcher and participants considered?	✗	✗
Ethic issues into consideration?	✓	✓
Data analysis sufficiently rigorous?	✓	✓
Clear statement of findings?	✓	✓
Valuable research?	✓	✓