Table 2.

Evaluation of the qualifying papers using the JBI guidelines [17,33,45,55,56,[64], [65], [66], [67], [68], [69], [70], [71], [72], [73], [74], [75], [76], [77], [78], [79]].

No.	Criteria	Qa	Qb	Qc	Qd	Qe	Qf	Qg	Qh
1	Salem et al. [64]	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes
2	Al-Haidar [65]	Yes	Yes	Yes	Yes	No	No	Yes	Yes
3	Al Hamed, Taha, Sabra & Bella [66]	Yes	Yes	Yes	Yes	No	No	Yes	Yes
4	Al Gelban [67]	Yes	Yes	Yes	Yes	Yes	No	Yes	Yes
5	Al-Gelban, Al-Amri, & Mostafa [33]	Yes	Yes	Yes	Yes	Yes	No	Yes	Yes
6	Al-Ghannami et al. [68]	Yes	Yes	Yes	Unclear	Yes	Yes	Yes	Yes
7	Khamis [45]	Unclear	Yes	Yes	Yes	Yes	Yes	Unclear	Yes
8	Almuhlafi, Jamilah, Almutairi & Salam [69]	Yes	Yes	Yes	Unclear	Yes	Yes	Yes	Yes
9	Fatima & Ahmad [70]	Yes	Yes	Yes	Yes	Yes	No	Yes	Yes
10	Gaffar, Alsanosy, & Mahfouz [56]	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes
11	Homidi, Obaidat & Hamaidi [71]	Yes	Yes	Yes	Yes	No	No	Yes	Yes
12	Jenahi, Khalil, and Bella [72]	Yes	Yes	Yes	Yes	Yes	No	Yes	Yes
13	Al Qahtani [73]	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes
14	AlZaben et al. [17]	Yes	Yes	Yes	Yes	Yes	No	Yes	Yes
15	Al Qahtani [74]	Yes	Yes	Yes	Yes	Yes	No	Yes	Yes
16	Alatiq, Alshalan, and Almodayfer [75]	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes
17	Almodayfer and Alatiq [76]	Yes	Yes	Yes	Yes	Yes	No	Yes	Yes
18	AlHarbi et al. [77]	Yes	Yes	Yes	Yes	No	No	Yes	Yes
19	Amin, Amr & Zaza [55]	Yes	Yes	Yes	Yes	Yes	No	Yes	Yes
20	Allihaibi [78]	No	Yes	Yes	Yes	Yes	No	Yes	Yes
21	Alenazi, Hammad, and Mohamed [79]	Yes	Yes	Yes	Yes	Yes	No	Yes	Yes

^aWere The Criteria For Inclusion In The Sample Clearly Defined?.

^bWere The Study Subjects And The Setting Described In Detail?.

^cWas The Exposure Measured In A Valid And Reliable Way?.

^dWere Objective, Standard Criteria Used For Measurement Of The Condition?.

^eWere Confounding Factors Identified?.

^fWere Strategies To Deal With Confounding Factors Stated?.

^gWere The Outcomes Measured In A Valid And Reliable Way?.

^hWas Appropriate Statistical Analysis Used?.