TABLE 2.

Sensitivity analysis of pain scores using the method of eliminating studies one by one.

Deleted study	I 2 (%)	p	SMD (95% CI)
Saawarn 2011	89	<0.00001	−0.74 (−1.46, −0.02)
Salazar-Sanchez 2010	88	<0.00001	−0.77 (−1.52, −0.02)
Shetty 2016	0	0.43	−0.34 (−0.58, −0.11)
Abdeldayem 2020	88	<0.00001	−0.71 (−1.43, 0.01)
Agha-Hosseini 2021	88	<0.00001	−0.79 (−1.54, −0.05)
Amirchaghmaghi 2016	88	<0.00001	-0.84 (−1.52, −0.15)
Ghada Nabil 2016	88	<0.00001	−0.83 (−1.53, −0.13)
Mostafa 2018	89	<0.00001	−0.74 (−1.48, 0.00)
Shoukheba 2016	89	<0.00001	−0.75 (−1.47, −0.03)