Table 2 Methodological evaluation of included studies

Karambin M. et al. [14]

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

8

High

Fatehi T. et al. [15]

Yes

Yes

Yes

Yes

Unclear

Unclear

Yes

Yes

6

Medium

Rafati M.R et al. [16]

Yes

Yes

Yes

Yes

Yes

No

Yes

Yes

7

High

Mozafari A. et al. [17]

Yes

Yes

Unclear

Yes

Unclear

No

Yes

Yes

5

Medium

Shahian M. et al. [18]

No

Yes

Yes

Yes

No

Unclear

Yes

Yes

5

Medium

Sedigh Ebrahim H. et al. [19]

Yes

Yes

Yes

Yes

Yes

Unclear

No

Yes

6

Medium

Rezaei A. et al. [20]

Yes

Yes

Yes

Yes

Yes

Unclear

Yes

Yes

7

High

Behmadi H. et al. [21]

Yes

No

Yes

No

Yes

Unclear

Yes

Yes

5

Medium

Mohammadi N et al. [22]

Yes

Yes

Unclear

Yes

Yes

Yes

Yes

Yes

7

High

Boskabadi H. et al. [23]

Yes

Yes

Yes

Yes

Unclear

No

Yes

Yes

6

Medium

Falahi J. et al. [24]

Yes

Yes

Yes

No

Yes

Unclear

Unclear

Yes

5

Medium

Aletayeb S.M.H. et al. [25]

Yes

Yes

Unclear

Yes

Yes

No

Yes

Yes

6

Medium

Monsef A. et al. [26]

Unclear

Yes

Yes

Yes

Unclear

No

Yes

Yes

5

Medium

Dezfoulimanesh Z et al. [27]

Yes

Yes

Yes

Yes

Yes

Unclear

Yes

Yes

7

High

Nikkhoo B. et al. [28]

Unclear

Yes

Yes

Yes

Unclear

Yes

Yes

Yes

6

Medium

Bahmani N. et al. [29]

Yes

Yes

Unclear

Yes

Yes

Unclear

Yes

Yes

6

Medium

Ghotaslou R. et al. [30]

Yes

Yes

Unclear

Yes

Yes

No

Unclear

Yes

5

Medium

Mahallei M. et al. [31]

Yes

Unclear

No

Yes

Yes

Yes

Yes

Yes

6

Medium

Hosseini M. et al. [32]

Unclear

Yes

Yes

Yes

Yes

Unclear

Yes

Yes

6

Medium

Gheybi SH. et al. [33]

Yes

No

Yes

Yes

Yes

No

Unclear

Yes

5

Medium

Bakhsi khaniki GH., et al. [34]

Yes

Yes

Yes

Yes

Unclear

Unclear

Yes

Yes

6

Medium

Sharif M.R. et al. [35]

Yes

Yes

Unclear

Yes

No

No

Yes

Yes

5

Medium

Malakan Rad E. et al. [36]

Yes

Yes

Unclear

Yes

Unclear

Unclear

Yes

Yes

5

Medium

Movahedian AH. et al. [37]

Yes

Yes

Yes

Yes

Unclear

Yes

Yes

Yes

7

High

Rajabi Z. et al. [38]

Yes

Unclear

No

Yes

Yes

Yes

Unclear

Yes

5

Medium

Behjati SH. et al. [39]

Yes

Yes

Yes

Yes

Unclear

Unclear

Yes

Yes

6

Medium

Rabirad N. et al. [40]

Yes

No

No

Yes

Yes

Unclear

Yes

Yes

5

Medium

Marzban A. et al. [41]

Yes

No

Unclear

No

Yes

Yes

Yes

Yes

5

Medium

Tehrani F. et al. [42]

Yes

Yes

Unclear

Yes

Yes

Unclear

Yes

Yes

6

Medium

Rajabi Z. et al. [43]

Yes

Yes

Yes

Yes

Unclear

Unclear

Yes

Yes

6

Medium

Mahmoudi S. et al. [44]

No

Yes

Unclear

Yes

Yes

Unclear

Yes

Yes

5

Medium

26

25

18

28

19

7

26

31