Table 2. Quality Assessment of Included Studies Based on Newcastle-Ottawa Scale (NOS).

Study	Selection				Comparability	Outcome		Overall Score
	Representation	Sample size	Non-Respondents	Exposure		Outcome	Statistical test
Alves et al. (2020)	*	*	*	**	**	**	*	10
Bidari et al. (2022)	*	*	*	**	-	**	*	8
Cardinal et al. (2019)	*	*	*	**	-	**	*	8
Caumo et al. (2016)	*	*	*	**	-	**	*	8
Deitos et al. (2018)	*	*	*	**	-	**	*	8
Elkfury et al. (2021)	*	*	*	**	**	**	*	10
Fawzy et al. (2015)	*	*	*	**	**	**	*	10
Haas et al. (2010)	*	*	*	**	**	**	*	10
Iannuccelli et al. (2022)	*	*	*	**	**	**	*	10
Jablochkova et al. (2019)	*	*	*	**	*	**	*	9
Laske et al. (2007)	*	*	*	**	**	**	*	10
Martin et al. (2018)	*	*	*	**	-	**	*	8
Nugraha et al. (2013)	*	*	*	**	*	**	*	9
Park et al. (2018)	*	*	*	**	-	**	*	8
Polli et al. (2020)	*	*	*	**	**	**	*	10
Ranzolin et al. (2016)	*	*	*	**	*	**	*	9
Sarchielli et al. (2007)	*	*	*	**	*	**	*	9
Stefani et al. (2019)	*	*	*	**	-	**	*	8
Taşkin et al. (2008)	*	*	*	**	-	**	*	8
Xiao et al. (2022)	*	*	*	**	-	**	*	8