Table 1 Included Studies Characteristics

Abouammoh et al., 2018 [8]

SA

4

R

994

994

12.5

25.7

8.6

0.75–70

Al-Mezaine et al., 2010 [9]

SA

4

R

629

629

12.6

25

14.8

-

Andreoli et al., 2009 [10]

USA

4

R

558

558

19.2

40.1

-

1–95

Dehghani et al., 2018 [11]

Iran

4

R

918

918

13.6

35.3

15.8

-

Duch-Samper et al., 1997 [12]

Spain

4

R

403

403

-

-

-

-

Du Toit et al., 2017 [25]

Russia

2b

P

300

300

23.3

-

-

-

Gupta et al., 2010 [13]

India

2b

P

174

174

48

21.6

-

-

Huang et al., 2016 [14]

USA

2b

R

224

224

18.8

35

22

-

Mansouri et al., 2009 [15]

Iran

4

R

2340

2340

18.6

22.4

16.7

0.33–90

Nakayama et al., 2019 [16]

Brazil

4

R

453

453

42.3

15.6

-

-

Narang et al., 2003 [17]

India

2b

P

70

70

-

-

-

-

Rafati et al., 2013 [18]

Iran

2b

P

111

111

17.1

22.7

12.7

-

Soheilian et al., 2007 [19]

Iran

2b

P

346

346

13.6

-

-

-

Soliman et al., 2008 [20]

Egypt

4

P

147

153

20

22

-

0.17–76

Tabatabaei et al., 2016 [21]

Iran

4

P

1255

1255

26.5

46

19.9

2–98

Verbraeken et al., 1994 [22]

Belgium

4

R

615

615

-

-

-

-