Table 2 Results of sensitivity analyses after removing one study iteratively

Alshami AM. 2021 [24]

2.78 [0.82, 4.75]

0.005

136.53

 < 0.00001

96%

Im B 2016 [32]

2.70 [0.91, 4.49]

0.003

138.42

 < 0.00001

96%

Javdaneh N 2021 [33]

2.94 [1.12, 4.76]

0.002

108.15

 < 0.00001

95%

Özdemir F 2021 [34]

2.82 [0.96, 4.69]

0.003

135.36

 < 0.00001

96%

Shiravi S 2019 [25]

1.79 [0.69, 2.89]

0.001

50.29

 < 0.00001

90%

Shirzadi Z 2018 [35]

2.09 [0.54, 3.63]

0.008

104.53

 < 0.00001

95%

Srikrajang S 2023 [21]

2.74 [0.86, 4.62]

0.008

138.18

 < 0.00001

96%