Table 1.

Aggregate data of selected studies

Author	Year	Country	Study design	Single/multicenter	Financial COI	Sample size
S S Ravikumar et al.	2019	India	Prospective	Single	Nil	45
Imran.A et al.	2019	India	Prospective	Single	Nil	150
Salih. M. M et al.	2018	Saudi Arabia	Prospective	Single		90
Asemi-Rad et al.	2013	Iran	Prospective	Single	Nil	100
Hallikermath et al.	2011	India	Prospective	Single	Nil	60
Reddy et al.	2018	India	Prospective	Single	Nil	60

COI: Contribution