Table 1. The Crowe Critical Appraisal Tool quality assessment.

Category		[25]	[23]	[22]	[27]	[24]	[26]
1.	Preliminary	4	4	4	4	3	4
2.	Introduction	3	4	3	4	4	4
3.	Design	3	4	3	4	4	4
4.	Sampling	3	5	4	4	3	5
5.	Data Collection	4	4	3	4	4	5
6.	Ethics	4	5	3	5	4	4
7.	Results	4	4	4	4	5	5
8.	Discussion	4	4	3	4	4	4
9.	Total score (/40)	29	34	27	33	31	35
10.	Percentage	73%	85%	68%	83%	78%	88%