Table 1.

AMSTAR table.

		Quality Assessment Tool AMSTAR
	Citation	1	2	3	4	5	6	7	8	9	10	11	Score
1	Khan et al. 2018 [39]	1	CA	1	1	0	1	NA	1	1	1	1	8
2	Ahmed et al.2019 [40]	1	0	1	1	0	1	NA	1	1	1	1	8
3	Mishra et al. 2019 [41]	1	0	0	1	0	1	NA	1	1	1	1	8
4	Roy et al. 2019 [42]	1	0	1	1	0	1	1	1	NA	1	1	8
5	Nasrollahzadeh et al. 2019 [43]	1	0	1	1	0	1	1	1	NA	1	1	8
6	Zafar et al. 2019 [44]	1	0	1	1	0	1	NA	1	NA	1	1	7
7	Nisar et al. 2019 [45]	1	0	1	1	0	1	NA	1	NA	1	1	7
8	Some et al. 2018 [46]	1	0	1	CA	0	1	NA	1	NA	1	1	6
9	Fahimirad et al. 2019 [47]	1	0	1	CA	0	1	NA	1	NA	1	1	7
10	ElShafey 2020 [48]	1	0	1	CA	0	1	NA	1	1	0	1	6
11	Kumar et al. 2018 [49]	1	0	1	CA	0	1	NA	0	NA	1	1	5
12	Singh et al. 2020 [37]	1	0	1	1	0	1	NA	1	NA	1	1	7
13	Salleh et al. 2020 [50]	1	0	1	1	0	1	NA	1	NA	0	1	6
14	Yun’an Qing et al. 2018 [36]	1	CA	1	1	0	1	NA	1	NA	CA	1	6
15	Ferdous 2020 [51]	1	CA	1	1	0	1	NA	1	NA	0	1	6
16	Yin et al. 2020 [52]	1	CA	1	1	0	1	NA	1	1	1	1	6
17	Ahmad et al. 2019 [53]	1	0	1	1	0	1	NA	1	NA	1	1	7
18	Gumel et al. 2019 [25]	1	0	1	1	CA	1	NA	1	NA	1	1	7
19	Escárcega-González et al. 2018 [54]	1	0	1	0	0	1	NA	1	NA	1	1	6
20	Nagar et al. 2018 [55]	1	CA	1	0	0	1	NA	1	NA	0	1	5
21	Mikhailov et al. 2018 [56]	1	0	1	1	0	1	NA	0	NA	1	1	6
22	Hamelian et al 2018 [57]	1	0	0	0	0	1	NA	1	NA	0	1	4
23	Zulfiqar et al. 2018 [58]	1	0	0	1	0	0	NA	0	NA	1	1	4
24	Haqq 2018 [59]	1	0	0	0	0	1	NA	0	NA	1	1	4
25	Ishak et al. 2019 [60]	1	0	CA	0	0	1	NA	1	NA	1	1	5
26	de Aragao et al. 2019 [61]	1	0	CA	0	0	1	NA	1	NA	1	1	5
27	Hasnain Met al. 2019 [62]	1	0	CA	1	0	1	NA	1	NA	1	1	6
28	Das et al. 2020 [63]	1	0	CA	1	0	1	NA	1	NA	1	1	6

1 = Yes; 0 = No; CA = Can’t Answer; NA = Not Applicable (Source: Sharifetal. 2013) [38] Characteristics of Included Studies.