Table 4.

Quality assessment of included human randomized controlled trials according to Cochrane

First author	Random sequence	Allocation concealment	Blinding	Incomplete outcome	Selective reporting
Barczynski [2]	Low	Low	Unclear	Unclear	Unclear
Basgul [13]	Unclear	Unclear	Unclear	Unclear	Unclear
Bogani [14]	Low	Unclear	Unclear	Low	Low
Celik [15]	Unclear	Unclear	Unclear	Unclear	Unclear
Celik [16]	Low	Unclear	Unclear	Low	Unclear
Chok [17]	Low	Low	Unclear	Low	Unclear
Dexter [18]	Unclear	Unclear	Unclear	Low	Unclear
Ekici [19]	Unclear	Unclear	Unclear	Unclear	High
Emad Esmat [9]	Low	Unclear	Unclear	Unclear	Unclear
Eryilmaz [6]	Unclear	Unclear	Unclear	Low	Unclear
Gupta [20]	Low	Low	Unclear	Low	Unclear
Hasukic [21]	Low	Low	Unclear	Unclear	Unclear
Ibraheim [7]	Unclear	Low	Unclear	Unclear	Unclear
Joshipura [22]	Unclear	Low	Low	Unclear	Unclear
Kandil [23]	Unclear	Unclear	Unclear	Low	Unclear
Kanwer [24]	Low	Unclear	Unclear	Unclear	Unclear
Karagulle [25]	Unclear	Unclear	Unclear	Low	Unclear
Koc [26]	Unclear	Low	Unclear	Low	Unclear
Morino [27]	Unclear	Unclear	Unclear	Unclear	Unclear
Perrakis [28]	Low	Unclear	Unclear	Unclear	Unclear
Polat [29]	Unclear	Unclear	Unclear	Unclear	Unclear
Sandhu [30]	Unclear	Unclear	Unclear	Low	Unclear
Sarli [31]	Unclear	Unclear	Low	Low	Unclear
Schietroma [8]	Unclear	Unclear	Unclear	Unclear	Unclear
Sefr [32]	Low	Unclear	Unclear	Low	Unclear
Singla [33]	Low	unclear	Unclear	Low	Unclear
Sood [34]	Low	Unclear	Unclear	Low	Unclear
Topal [35]	Unclear	Unclear	Unclear	Low	Unclear
Torres [36]	Unclear	Unclear	Unclear	Low	Low
Umar [37]	Unclear	Unclear	Unclear	High	Unclear
Vijayaraghavan [38]	Low	Low	Low	Low	Unclear
Wallace [39]	Low	Unclear	Unclear	Low	Unclear
Warlé [40]	Unclear	Low	Low	Low	Unclear
Yasir [41]	Unclear	Unclear	Unclear	High	Unclear