Table 2.

Critical appraisal of the selected 22 articles based on JBI checklist

Sl. No.	Inluded artiles	Crit-1	Crit-2	Crit-3	Crit-4	Crit-5	Crit-6	Crit-7	Crit-8
		Were the criteria for inclusion in the sample clearly defined?	Were the study subjects and the setting described in detail?	Was the exposure measured in a valid and reliable way?	Were objective, standard criteria used for measurement of the condition?	Were confounding factors identified?	Were strategies to deal with confounding factors stated?	Were the outcomes measured in a valid and reliable way?	Was appropriate statistical analysis used?
1.	Kitaneh M, Hamdan M.	1	1	1	1	0	X	1	1
2.	Algwaiz WM, Alghanim SA.	1	1	1	1	0	X	1	1
3.	Zafar W, Siddiqui E et al.	1	1	1	1	0	X	1	1
4.	AbuAlRub RF, Al Khawaldeh AT.	1	1	1	99	0	X	1	99
5.	Tucker JD, Cheng Y et al.	1	1	1	1	0	X	99	1
6.	Kvas A, Seljak J.	1	1	1	1	0	X	1	1
7.	Park M, Cho SH et al.	1	1	1	1	0	X	99	99
8.	Hamdan M, Abu Hamra A.	1	1	1	1	0	X	1	1
9.	Pompeii LA, Schoenfisch AL et al.	1	1	99	99	0	X	99	1
10.	Abed M, Morris E et al.	1	1	1	1	0	X	99	1
11.	Ferri P, Silvestri M et al.	1	1	1	1	0	X	1	1
12.	Bilici R, Sercan M et al.	1	1	1	1	0	X	99	1
13.	Sun T, Gao L et al.	1	1	1	1	0	X	99	1
14.	Shafran-Tikva S, Chinitz D et al.	1	1	1	1	0	X	1	1
15.	Rafeea F, Al Ansari A et al.	1	1	99	1	0	X	1	1
16.	Wong AHW, Combellick J et al.	1	1	1	1	0	X	1	1
17.	Alsaleem SA, Alsabaani A et al.	1	1	1	1	0	X	99	1
18.	Wang N, Wu D et al.	1	1	1	1	0	X	1	1
19.	Honarvar B, Ghazanfari N et al.	1	1	99	1	0	X	1	1
20.	Sachdeva S, Jamshed N et al.	99	1	1	1	0	X	1	1
21.	Demirci Ş, Uğurluoğlu Ö.	1	1	99	1	0	X	1	1
22.	Davey K, Ravishankar V et al.	1	1	1	1	0	X	1	1

Yes = 1, No = 0, Unclear = 99 and Not applicable = X