Table 3.

Quality appraisal of the quantitative papers

First author (year)	CASP criteria satisfied	Unclear criteria	CASP criteria Unmet	Proportion of satisfied criteria (n%)	Assessment	Main criteria not achieved
Riatto (2018) [10]	8	4	2	8/12 (66.6%)	Good	No Confidence Interval calculated
Zimmerman (1995) [31]	10	1	1	10/12 (83.3%)	Good	N/A
Freiberg (2020) [28]	7	3	2	7/12 (58.3%)	Good	N/A
Solyman (2018) [11]	8	2	2	8/12 (66.6%)	Good	Relationship between researcher and participants not mentioned
Angellilo (1996) [29]	8	2	2	8/12 (66.7%)	Good	No confidence intervals Calculated
Al-ani (2020) [9]	10	1	1	10/12 (83,3%)	Good	N/A
Goetz (2018) [15]	9	2	1	9/12 (75%)	Good	N/A