Table 3.

NOS-based quality analysis of the included studies

Study	Selection	Comparability	Exposure/Outcome	Overall
Anand et al., 2021[22]	****	**	***	Low
Marouf et al., 2021 [25]	****	**	***	Low
Larvin et al 2020 [29]	***	**	***	Low
Gupta et al. 2021 [23]	***	**	**	Low
Holt et al. 2021 [40]	**	*	***	Moderate
Donders et al 2022 [31]	***	**	***	Low
Larvin et al 2021 [30]	***	**	**	Low
Costa 2022 [37]	***	**	**	Low
Kaur et al 2022 [42]	**	*	***	Moderate
Mishra et al 2022 [44]	***	**	**	Low
Kamel et al. 2021 [24]	***	*	*	Moderate
Sirin & Ozcelik 2021 [47]	**	*	**	Moderate
Koppolu et al., 2023 [43]	**	**	***	Low
Sari et al., 2023 [46]	**	*	**	Moderate
Said et al., 2023 [27]	****	**	***	Low
Alnomay et al., 2023 [35]	**	**	**	Moderate
Guardado-Luevanos et al., 2022 [38]	**	**	***	Low
Gujar et al., 2022 [39]	**	**	***	Low
Wadhwa et al. 2022 [26]	***	**	***	Low
Poyato-Borrego et al., 2023 [45]	****	**	***	Low
Kalsi et al., 2023 [41]	***	**	***	Low
Bemquerer et al., 2023 [36]	**	**	**	Moderate